diff --git a/lualib-src/lua-bson.c b/lualib-src/lua-bson.c
index 04907181..e129f62b 100644
--- a/lualib-src/lua-bson.c
+++ b/lualib-src/lua-bson.c
@@ -1,5 +1,4 @@
-// include skynet.h first for malloc hook
-#include "skynet.h"
+#include "skynet_malloc.h"
 
 #include <lua.h>
 #include <lauxlib.h>
@@ -74,7 +73,7 @@ struct bson_reader {
 static inline void
 bson_destroy(struct bson *b) {
 	if (b->ptr != b->buffer) {
-		free(b->ptr);
+		skynet_free(b->ptr);
 	}
 }
 
@@ -94,10 +93,10 @@ bson_reserve(struct bson *b, int sz) {
 	} while (b->cap <= b->size + sz);
 
 	if (b->ptr == b->buffer) {
-		b->ptr = malloc(b->cap);
+		b->ptr = skynet_malloc(b->cap);
 		memcpy(b->ptr, b->buffer, b->size);
 	} else {
-		b->ptr = realloc(b->ptr, b->cap);
+		b->ptr = skynet_realloc(b->ptr, b->cap);
 	}
 }
 
diff --git a/lualib-src/lua-memory.c b/lualib-src/lua-memory.c
index e05d853a..fa7c026c 100644
--- a/lualib-src/lua-memory.c
+++ b/lualib-src/lua-memory.c
@@ -1,6 +1,3 @@
-// include skynet.h first for malloc hook
-#include "skynet.h"
-
 #include <lua.h>
 #include <lauxlib.h>
 
diff --git a/lualib-src/lua-mongo.c b/lualib-src/lua-mongo.c
index 9c956b0a..166e6683 100644
--- a/lualib-src/lua-mongo.c
+++ b/lualib-src/lua-mongo.c
@@ -1,5 +1,4 @@
-// include skynet.h first for malloc hook
-#include "skynet.h"
+#include "skynet_malloc.h"
 
 #include <lua.h>
 #include <lauxlib.h>
@@ -68,7 +67,7 @@ get_length(const document buffer) {
 static inline void
 buffer_destroy(struct buffer *b) {
 	if (b->ptr != b->buffer) {
-		free(b->ptr);
+		skynet_free(b->ptr);
 	}
 }
 
@@ -88,10 +87,10 @@ buffer_reserve(struct buffer *b, int sz) {
 	} while (b->cap <= b->size + sz);
 
 	if (b->ptr == b->buffer) {
-		b->ptr = malloc(b->cap);
+		b->ptr = skynet_malloc(b->cap);
 		memcpy(b->ptr, b->buffer, b->size);
 	} else {
-		b->ptr = realloc(b->ptr, b->cap);
+		b->ptr = skynet_realloc(b->ptr, b->cap);
 	}
 }
 
diff --git a/lualib-src/lua-netpack.c b/lualib-src/lua-netpack.c
index 8f3bbd0a..a95ed4d7 100644
--- a/lualib-src/lua-netpack.c
+++ b/lualib-src/lua-netpack.c
@@ -1,5 +1,4 @@
-// include skynet.h first for malloc hook
-#include "skynet.h"
+#include "skynet_malloc.h"
 
 #include "skynet_socket.h"
 
@@ -51,7 +50,7 @@ clear_list(struct uncomplete * uc) {
 	while (uc) {
 		void * tmp = uc;
 		uc = uc->next;
-		free(tmp);
+		skynet_free(tmp);
 	}
 }
 
@@ -71,7 +70,7 @@ lclear(lua_State *L) {
 	}
 	for (i=q->head;i<q->tail;i++) {
 		struct netpack *np = &q->queue[i % q->cap];
-		free(np->buffer);
+		skynet_free(np->buffer);
 	}
 	q->head = q->tail = 0;
 
@@ -147,7 +146,7 @@ expand_queue(lua_State *L, struct queue *q) {
 static void
 push_data(lua_State *L, int fd, void *buffer, int size, int clone) {
 	if (clone) {
-		void * tmp = malloc(size);
+		void * tmp = skynet_malloc(size);
 		memcpy(tmp, buffer, size);
 		buffer = tmp;
 	}
@@ -167,7 +166,7 @@ static struct uncomplete *
 save_uncomplete(lua_State *L, int fd) {
 	struct queue *q = get_queue(L);
 	int h = hash_fd(fd);
-	struct uncomplete * uc = malloc(sizeof(struct uncomplete));
+	struct uncomplete * uc = skynet_malloc(sizeof(struct uncomplete));
 	memset(uc, 0, sizeof(*uc));
 	uc->next = q->hash[h];
 	uc->pack.id = fd;
@@ -198,7 +197,7 @@ push_more(lua_State *L, int fd, uint8_t *buffer, int size) {
 		struct uncomplete * uc = save_uncomplete(L, fd);
 		uc->read = size;
 		uc->pack.size = pack_size;
-		uc->pack.buffer = malloc(pack_size);
+		uc->pack.buffer = skynet_malloc(pack_size);
 		memcpy(uc->pack.buffer, buffer, size);
 		return;
 	}
@@ -225,7 +224,7 @@ filter_data_(lua_State *L, int fd, uint8_t * buffer, int size) {
 			++buffer;
 			--size;
 			uc->pack.size = pack_size;
-			uc->pack.buffer = malloc(pack_size);
+			uc->pack.buffer = skynet_malloc(pack_size);
 			uc->read = 0;
 		}
 		int need = uc->pack.size - uc->read;
@@ -245,12 +244,12 @@ filter_data_(lua_State *L, int fd, uint8_t * buffer, int size) {
 			lua_pushinteger(L, fd);
 			lua_pushlightuserdata(L, uc->pack.buffer);
 			lua_pushinteger(L, uc->pack.size);
-			free(uc);
+			skynet_free(uc);
 			return 5;
 		}
 		// more data
 		push_data(L, fd, uc->pack.buffer, uc->pack.size, 0);
-		free(uc);
+		skynet_free(uc);
 		push_more(L, fd, buffer, size);
 		lua_pushvalue(L, lua_upvalueindex(TYPE_MORE));
 		return 2;
@@ -269,7 +268,7 @@ filter_data_(lua_State *L, int fd, uint8_t * buffer, int size) {
 			struct uncomplete * uc = save_uncomplete(L, fd);
 			uc->read = size;
 			uc->pack.size = pack_size;
-			uc->pack.buffer = malloc(pack_size);
+			uc->pack.buffer = skynet_malloc(pack_size);
 			memcpy(uc->pack.buffer, buffer, size);
 			return 1;
 		}
@@ -277,7 +276,7 @@ filter_data_(lua_State *L, int fd, uint8_t * buffer, int size) {
 			// just one package
 			lua_pushvalue(L, lua_upvalueindex(TYPE_DATA));
 			lua_pushinteger(L, fd);
-			void * result = malloc(pack_size);
+			void * result = skynet_malloc(pack_size);
 			memcpy(result, buffer, size);
 			lua_pushlightuserdata(L, result);
 			lua_pushinteger(L, size);
@@ -298,7 +297,7 @@ filter_data(lua_State *L, int fd, uint8_t * buffer, int size) {
 	int ret = filter_data_(L, fd, buffer, size);
 	// buffer is the data of socket message, it malloc at socket_server.c : function forward_message .
 	// it should be free before return,
-	free(buffer);
+	skynet_free(buffer);
 	return ret;
 }
 
@@ -419,7 +418,7 @@ lpack(lua_State *L) {
 		return luaL_error(L, "Invalid size (too long) of data : %d", (int)len);
 	}
 
-	uint8_t * buffer = malloc(len + 2);
+	uint8_t * buffer = skynet_malloc(len + 2);
 	write_size(buffer, len);
 	memcpy(buffer+2, ptr, len);
 
@@ -460,7 +459,7 @@ ltostring(lua_State *L) {
 		lua_pushliteral(L, "");
 	} else {
 		lua_pushlstring(L, (const char *)ptr, size);
-		free(ptr);
+		skynet_free(ptr);
 	}
 	return 1;
 }
diff --git a/lualib-src/lua-seri.c b/lualib-src/lua-seri.c
index 2e3b96d3..69e1c2af 100644
--- a/lualib-src/lua-seri.c
+++ b/lualib-src/lua-seri.c
@@ -2,8 +2,7 @@
   https://github.com/cloudwu/lua-serialize
  */
 
-// include skynet.h first for malloc hook
-#include "skynet.h"
+#include "skynet_malloc.h"
 
 #include <lua.h>
 #include <lauxlib.h>
@@ -50,7 +49,7 @@ struct read_block {
 
 inline static struct block *
 blk_alloc(void) {
-	struct block *b = malloc(sizeof(struct block));
+	struct block *b = skynet_malloc(sizeof(struct block));
 	b->next = NULL;
 	return b;
 }
@@ -113,7 +112,7 @@ wb_free(struct write_block *wb) {
 	struct block *blk = wb->head;
 	while (blk) {
 		struct block * next = blk->next;
-		free(blk);
+		skynet_free(blk);
 		blk = next;
 	}
 	wb->head = NULL;
@@ -145,7 +144,7 @@ rb_read(struct read_block *rb, void *buffer, int sz) {
 
 	if (rb->ptr == BLOCK_SIZE) {
 		struct block * next = rb->current->next;
-		free(rb->current);
+		skynet_free(rb->current);
 		rb->current = next;
 		rb->ptr = 0;
 	}
@@ -168,7 +167,7 @@ rb_read(struct read_block *rb, void *buffer, int sz) {
 
 	for (;;) {
 		struct block * next = rb->current->next;
-		free(rb->current);
+		skynet_free(rb->current);
 		rb->current = next;
 
 		if (sz < BLOCK_SIZE) {
@@ -188,7 +187,7 @@ static void
 rb_close(struct read_block *rb) {
 	while (rb->current) {
 		struct block * next = rb->current->next;
-		free(rb->current);
+		skynet_free(rb->current);
 		rb->current = next;
 	}
 	rb->len = 0;
@@ -549,7 +548,7 @@ _seri(lua_State *L, struct block *b) {
 	memcpy(&len, b->buffer ,sizeof(len));
 
 	len -= 4;
-	uint8_t * buffer = malloc(len);
+	uint8_t * buffer = skynet_malloc(len);
 	uint8_t * ptr = buffer;
 	int sz = len;
 	if (len < BLOCK_SIZE - 4) {
@@ -622,7 +621,7 @@ _luaseri_pack(lua_State *L) {
 
 	while (b) {
 		struct block * next = b->next;
-		free(b);
+		skynet_free(b);
 		b = next;
 	}
 
diff --git a/lualib-src/lua-socket.c b/lualib-src/lua-socket.c
index fb66d93d..c3ba9f3b 100644
--- a/lualib-src/lua-socket.c
+++ b/lualib-src/lua-socket.c
@@ -1,5 +1,4 @@
-// include skynet.h first for malloc hook
-#include "skynet.h"
+#include "skynet_malloc.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -38,7 +37,7 @@ lfreepool(lua_State *L) {
 	for (i=0;i<sz;i++) {
 		struct buffer_node *node = &pool[i];
 		if (node->msg) {
-			free(node->msg);
+			skynet_free(node->msg);
 			node->msg = NULL;
 		}
 	}
@@ -143,7 +142,7 @@ return_free_node(lua_State *L, int pool, struct socket_buffer *sb) {
 	lua_rawgeti(L,pool,1);
 	free_node->next = lua_touserdata(L,-1);
 	lua_pop(L,1);
-	free(free_node->msg);
+	skynet_free(free_node->msg);
 	free_node->msg = NULL;
 
 	free_node->sz = 0;
@@ -253,7 +252,7 @@ static int
 ldrop(lua_State *L) {
 	void * msg = lua_touserdata(L,1);
 	luaL_checkinteger(L,2);
-	free(msg);
+	skynet_free(msg);
 	return 0;
 }
 
@@ -324,7 +323,7 @@ static int
 lstr2p(lua_State *L) {
 	size_t sz = 0;
 	const char * str = luaL_checklstring(L,1,&sz);
-	void *ptr = malloc(sz);
+	void *ptr = skynet_malloc(sz);
 	memcpy(ptr, str, sz);
 	lua_pushlightuserdata(L, ptr);
 	lua_pushinteger(L, (int)sz);
@@ -414,7 +413,7 @@ get_buffer(lua_State *L, int *sz) {
 	} else {
 		size_t len = 0;
 		const char * str =  luaL_checklstring(L, 2, &len);
-		buffer = malloc(len);
+		buffer = skynet_malloc(len);
 		memcpy(buffer, str, len);
 		*sz = (int)len;
 	}
diff --git a/skynet-src/skynet_malloc.h b/skynet-src/skynet_malloc.h
index d3c6400c..0d1b9980 100644
--- a/skynet-src/skynet_malloc.h
+++ b/skynet-src/skynet_malloc.h
@@ -3,11 +3,15 @@
 
 #include <stddef.h>
 
+#ifdef SKYNET_MALLOC_RENAME
+
 #define malloc skynet_malloc
 #define calloc skynet_calloc
 #define realloc skynet_realloc
 #define free skynet_free
 
+#endif
+
 void * skynet_malloc(size_t sz);
 void * skynet_calloc(size_t nmemb,size_t size);
 void * skynet_realloc(void *ptr, size_t size);