diff --git a/src/Makefile b/src/Makefile
index e99a18a5..e83a022b 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -15,7 +15,7 @@ endif
 
 ifeq ($(USE_TCMALLOC),yes)
   CCLINK+= -ltcmalloc
-  CCFLAGS+= -DUSE_TCMALLOC
+  CFLAGS+= -DUSE_TCMALLOC
 endif
 CCOPT= $(CFLAGS) $(CCLINK) $(ARCH) $(PROF)
 DEBUG?= -g -rdynamic -ggdb