1 files changed, 1 insertions, 1 deletions
diff --git a/src/apis.js b/src/apis.js
index 8a566a46..3a9671a8 100644
--- a/src/apis.js
+++ b/src/apis.js
@@ -394,7 +394,7 @@ var angularArray = {
           }
         }
         break;
-      case $function:
+      case 'function':
         predicates.push(expression);
         break;
       default: