diff --git a/packages/core/src/reflection/reflection_capabilities.ts b/packages/core/src/reflection/reflection_capabilities.ts
index 77827fb428..adfbcc7fd5 100644
--- a/packages/core/src/reflection/reflection_capabilities.ts
+++ b/packages/core/src/reflection/reflection_capabilities.ts
@@ -23,6 +23,8 @@ export const DELEGATE_CTOR = /^function\s+\S+\(\)\s*{[\s\S]+\.apply\(this,\s*arg
 export const INHERITED_CLASS = /^class\s+[A-Za-z\d$_]*\s*extends\s+[^{]+{/;
 export const INHERITED_CLASS_WITH_CTOR =
     /^class\s+[A-Za-z\d$_]*\s*extends\s+[^{]+{[\s\S]*constructor\s*\(/;
+export const INHERITED_CLASS_WITH_DELEGATE_CTOR =
+    /^class\s+[A-Za-z\d$_]*\s*extends\s+[^{]+{[\s\S]*constructor\s*\(\)\s*{\s+super\(\.\.\.arguments\)/;
 
 export class ReflectionCapabilities implements PlatformReflectionCapabilities {
   private _reflect: any;
@@ -70,7 +72,7 @@ export class ReflectionCapabilities implements PlatformReflectionCapabilities {
     // This also helps to work around for https://github.com/Microsoft/TypeScript/issues/12439
     // that sets 'design:paramtypes' to []
     // if a class inherits from another class but has no ctor declared itself.
-    if (DELEGATE_CTOR.exec(typeStr) ||
+    if (DELEGATE_CTOR.exec(typeStr) || INHERITED_CLASS_WITH_DELEGATE_CTOR.exec(typeStr) ||
         (INHERITED_CLASS.exec(typeStr) && !INHERITED_CLASS_WITH_CTOR.exec(typeStr))) {
       return null;
     }