diff --git a/srcpkgs/c-ares/template b/srcpkgs/c-ares/template
index 391ae1655d2..c96b35b48bd 100644
--- a/srcpkgs/c-ares/template
+++ b/srcpkgs/c-ares/template
@@ -13,9 +13,11 @@ checksum=b3612e6617d9682928a1d50c1040de4db6519f977f0b25d40cf1b632900b3efd
 pre_configure() {
 	case "$CFLAGS" in
 	*"-D_FORTIFY_SOURCE=2"*)
-		CFLAGS=${CFLAGS/-D_FORTIFY_SOURCE=2/}
-		CPPFLAGS+=" -D_FORTIFY_SOURCE=2"
+		export CFLAGS=${CFLAGS/-D_FORTIFY_SOURCE=?/}
+		export CPPFLAGS+=" -D_FORTIFY_SOURCE=2"
+		;;
 	esac
+	export CFLAGS=${CFLAGS/-I${XBPS_CROSS_BASE}\/usr\/include/}
 }
 
 c-ares-devel_package() {