diff --git a/app/assets/javascripts/src/Metamaps.Debug.js b/app/assets/javascripts/src/Metamaps.Debug.js
index 7dc61246..accd93a9 100644
--- a/app/assets/javascripts/src/Metamaps.Debug.js
+++ b/app/assets/javascripts/src/Metamaps.Debug.js
@@ -6,7 +6,7 @@
 
 Metamaps.Debug = function () {
   console.debug(Metamaps)
-  console.debug(`Metamaps Version: ${Metamaps.VERSION}`)
+  console.debug('Metamaps Version: ' + Metamaps.VERSION)
 }
 Metamaps.debug = function () {
   Metamaps.Debug()