diff --git a/configure.ac b/configure.ac
index a09db7d0..a72019e5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -239,7 +239,7 @@ dnl to make happen otherwise.
 default_munmap="1"
 case "${host}" in
   *-*-darwin*)
-	CFLAGS="$CFLAGS -fno-common"
+	CFLAGS="$CFLAGS"
 	abi="macho"
 	AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
 	RPATH=""