diff --git a/modules/@angular/core/src/util/decorators.ts b/modules/@angular/core/src/util/decorators.ts
index ed8fe7b0682021..a9fcee2836086f 100644
--- a/modules/@angular/core/src/util/decorators.ts
+++ b/modules/@angular/core/src/util/decorators.ts
@@ -243,7 +243,8 @@ export function Class(clsDef: ClassDefinition): Type<any> {
     Reflect.defineMetadata('annotations', this.annotations, constructor);
   }
 
-  if (!constructor['name']) {
+  const constructorName = constructor['name'];
+  if (!constructorName || constructorName === 'constructor') {
     (constructor as any)['overriddenName'] = `class${_nextClassId++}`;
   }
 
diff --git a/modules/@angular/core/test/util/decorators_spec.ts b/modules/@angular/core/test/util/decorators_spec.ts
index 5300a0d59ae7b7..1b14ef096896b4 100644
--- a/modules/@angular/core/test/util/decorators_spec.ts
+++ b/modules/@angular/core/test/util/decorators_spec.ts
@@ -132,6 +132,10 @@ export function main() {
               .toThrowError(
                   'Class definition \'extends\' property must be a constructor function was: non_type');
         });
+
+        it('should assign an overridden name for annonymous constructor functions', () => {
+          expect((Class({constructor: function() {}}) as any).overriddenName).not.toBeUndefined();
+        });
       });
     });
   });