diff --git a/packages/types/src/primitive/Type.ts b/packages/types/src/primitive/Type.ts
index cda5cb36e2..a592502d49 100644
--- a/packages/types/src/primitive/Type.ts
+++ b/packages/types/src/primitive/Type.ts
@@ -199,6 +199,8 @@ export default class Type extends Text {
         .replace(/system::/g, '')
         // replace `<T as Trait>::` (whitespaces were removed above)
         .replace(/<TasTrait>::/g, '')
+        // replace `<T as something::Trait>::` (whitespaces were removed above)
+        .replace(/<Tas[a-z]+::Trait>::/g, '')
         // replace `<Self as Trait>::` (whitespaces were removed above)
         .replace(/<SelfasTrait>::/g, '')
         // replace <Lookup as StaticLookup>