diff --git a/js/utils/poly.js b/js/utils/poly.js
index 8f8d70ddf9..58552ddc0e 100644
--- a/js/utils/poly.js
+++ b/js/utils/poly.js
@@ -32,7 +32,7 @@
             }
             
             self.className = classes.join(" ");
-          }
+          };
         }
 
         return {