From 26e74f72d6aa73f8813c4d092e4e6ff8455d6e9b Mon Sep 17 00:00:00 2001
From: RoboErikG <RoboErikG@users.noreply.github.com>
Date: Fri, 4 Aug 2017 11:34:33 -0700
Subject: [PATCH] Missed one use of string instead of .property in
 extensions.js (#1262)

---
 core/extensions.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/extensions.js b/core/extensions.js
index 6cea630da..607ef0271 100644
--- a/core/extensions.js
+++ b/core/extensions.js
@@ -211,7 +211,7 @@ Blockly.Extensions.checkMutatorDialog_ = function(object, errorPrefix) {
   if (hasCompose && hasDecompose) {
     if (typeof object.compose !== 'function') {
       throw new Error(errorPrefix + 'compose must be a function.');
-    } else if (typeof object['decompose'] !== 'function') {
+    } else if (typeof object.decompose !== 'function') {
       throw new Error(errorPrefix + 'decompose must be a function.');
     }
     return true;