diff --git a/src/auto/injector.js b/src/auto/injector.js
index 08fa4f756b9b..d43695e447c9 100644
--- a/src/auto/injector.js
+++ b/src/auto/injector.js
@@ -792,7 +792,7 @@ function createInjector(modulesToLoad, strictDi) {
           : getService(key)
         );
       }
-      if (!fn.$inject) {
+      if (isArray(fn)) {
         // this means that we must be an array.
         fn = fn[length];
       }