diff --git a/src/scripts/intl.js b/src/scripts/intl.js
index d4c84e46031e338262c88374cf9e704728a945b0..9b098e7e00519d1959b3d11e7f361f3afb2316c6 100644
--- a/src/scripts/intl.js
+++ b/src/scripts/intl.js
@@ -119,6 +119,13 @@ class JsI18n {
               console.error("Language not found");
             }
           });
+        } else {
+            if (locale != "fr") {
+              console.warn(`Locale not found: ${locale}, fallback to french`);
+              this.setLocale("fr");
+            } else {
+              console.error("Language not found");
+            }
         }
       });
       this.locale = locale;