diff --git a/packages/node_modules/@node-red/registry/lib/externalModules.js b/packages/node_modules/@node-red/registry/lib/externalModules.js
index c69859420..ff33c08fd 100644
--- a/packages/node_modules/@node-red/registry/lib/externalModules.js
+++ b/packages/node_modules/@node-red/registry/lib/externalModules.js
@@ -71,10 +71,13 @@ function requireModule(module) {
         e.code = "module_not_allowed";
         throw e;
     }
-    if (BUILTIN_MODULES.indexOf(module) !== -1) {
-        return require(module);
+
+    const parsedModule = parseModuleName(module);
+
+    if (BUILTIN_MODULES.indexOf(parsedModule.module) !== -1) {
+        return require(parsedModule.module);
     }
-    if (!knownExternalModules[module]) {
+    if (!knownExternalModules[parsedModule.module]) {
         const e = new Error("Module not allowed");
         e.code = "module_not_allowed";
         throw e;