diff --git a/srcpkgs/quickjs/template b/srcpkgs/quickjs/template
index a1c9f8d1c36..c9d7087d243 100644
--- a/srcpkgs/quickjs/template
+++ b/srcpkgs/quickjs/template
@@ -21,7 +21,7 @@ fi
 
 if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
 	makedepends+=" libatomic-devel"
-	CFLAGS+=" -DLINK_ATOMIC"
+	CFLAGS="-DLINK_ATOMIC"
 	export EXTRA_LIBS="-latomic"
 fi