diff --git a/srcpkgs/libunique1/template b/srcpkgs/libunique1/template
index 5d7b9e8fcf9..e5998ae21d0 100644
--- a/srcpkgs/libunique1/template
+++ b/srcpkgs/libunique1/template
@@ -34,6 +34,7 @@ pre_configure() {
 	for f in $(find ${wrksrc} -name *.[ch]); do
 		sed -i -s "s|G_CONST_RETURN|const|g" "$f"
 	done
+	sed -e "s,AM_CONFIG_HEADER,AC_CONFIG_HEADERS,g" -i configure.ac
 	autoreconf -fi
 }