diff --git a/dlls/inetcomm/protocol.c b/dlls/inetcomm/protocol.c
index c77cf268590..b7b01d4aaf2 100644
--- a/dlls/inetcomm/protocol.c
+++ b/dlls/inetcomm/protocol.c
@@ -495,8 +495,10 @@ static HRESULT WINAPI MimeHtmlProtocol_Start(IInternetProtocol *iface, const WCH
     binding->url[url.mhtml_len] = 0;
 
     hres = CreateURLMoniker(NULL, binding->url, &mon);
-    if(FAILED(hres))
+    if(FAILED(hres)) {
+        heap_free(binding);
         return hres;
+    }
 
     binding->IBindStatusCallback_iface.lpVtbl = &BindStatusCallbackVtbl;
     binding->ref = 1;