diff --git a/packages/compiler/src/aot/static_reflector.ts b/packages/compiler/src/aot/static_reflector.ts
index d8dd289192..dafdeef709 100644
--- a/packages/compiler/src/aot/static_reflector.ts
+++ b/packages/compiler/src/aot/static_reflector.ts
@@ -163,7 +163,9 @@ export class StaticReflector implements CompileReflector {
       let ownAnnotations: any[] = [];
       if (classMetadata['decorators']) {
         ownAnnotations = simplify(type, classMetadata['decorators']);
-        annotations.push(...ownAnnotations);
+        if (ownAnnotations) {
+          annotations.push(...ownAnnotations);
+        }
       }
       if (parentType && !this.summaryResolver.isLibraryFile(type.filePath) &&
           this.summaryResolver.isLibraryFile(parentType.filePath)) {