diff --git a/lib/formdata.c b/lib/formdata.c
index 28837bc734a3a5090fe996a85f638c2247e8f21b..8fb6d9cdd3eb90241c3dfe3f1bd42f42636f9436 100644
--- a/lib/formdata.c
+++ b/lib/formdata.c
@@ -1468,4 +1468,10 @@ CURLFORMcode curl_formadd(struct curl_httppost **httppost,
   return CURL_FORMADD_DISABLED;
 }
 
+void curl_formfree(struct curl_httppost *form)
+{
+  (void)form;
+  /* does nothing HTTP is disabled */
+}
+
 #endif  /* CURL_DISABLE_HTTP */