diff --git a/layout/build/nsContentDLF.cpp b/layout/build/nsContentDLF.cpp
index 1e25531a130..b88818ee853 100644
--- a/layout/build/nsContentDLF.cpp
+++ b/layout/build/nsContentDLF.cpp
@@ -310,7 +310,7 @@ nsContentDLF::CreateInstance(const char* aCommand,
   nsCOMPtr<nsIPluginHost> pluginHostCOM(do_GetService(MOZ_PLUGIN_HOST_CONTRACTID));
   nsPluginHost *pluginHost = static_cast<nsPluginHost*>(pluginHostCOM.get());
   if(pluginHost &&
-     NS_SUCCEEDED(pluginHost->IsPluginEnabledForType(aContentType))) {
+     NS_SUCCEEDED(pluginHost->IsPluginEnabledForType(aContentType, true))) {
     return CreateDocument(aCommand,
                           aChannel, aLoadGroup,
                           aContainer, kPluginDocumentCID,