diff --git a/marlowe-playground-client/src/Monaco.js b/marlowe-playground-client/src/Monaco.js
index db0d078abee..c9eac4ed5d8 100644
--- a/marlowe-playground-client/src/Monaco.js
+++ b/marlowe-playground-client/src/Monaco.js
@@ -131,7 +131,7 @@ exports.enableEmacsBindings_ = function (editor) {
 }
 
 exports.completionItemKindEq_ = function (a, b) {
-  a == b
+  return a == b;
 }
 
 exports.completionItemKindOrd_ = function (lt, eq, gt, a, b) {