diff --git a/Makefile b/Makefile
index 74e32204..fb63c1ae 100644
--- a/Makefile
+++ b/Makefile
@@ -28,10 +28,10 @@ all : jemalloc
 $(JEMALLOC_STATICLIB) : 3rd/jemalloc/Makefile
 	cd 3rd/jemalloc && $(MAKE) CC=$(CC) 
 
-3rd/jemalloc :
+3rd/jemalloc/autogen.sh :
 	git submodule update --init
 
-3rd/jemalloc/Makefile : | 3rd/jemalloc
+3rd/jemalloc/Makefile : | 3rd/jemalloc/autogen.sh
 	cd 3rd/jemalloc && ./autogen.sh --with-jemalloc-prefix=je_ --disable-valgrind
 
 jemalloc : $(JEMALLOC_STATICLIB)