diff --git a/src/lib/locale/locales.js b/src/lib/locale/locales.js
index 99ee115718..d02b3cc2f2 100644
--- a/src/lib/locale/locales.js
+++ b/src/lib/locale/locales.js
@@ -78,6 +78,12 @@ export function getSetGlobalLocale (key, values) {
             // moment.duration._locale = moment._locale = data;
             globalLocale = data;
         }
+        else {
+            if ((typeof console !==  'undefined') && console.warn) {
+                //warn user if arguments are passed but the locale could not be set
+                console.warn('Locale ' + key +  ' not found. Did you forget to load it?');
+            }
+        }
     }
 
     return globalLocale._abbr;