diff --git a/dist/js/datepicker.js b/dist/js/datepicker.js
index f92b2b8..97b36a8 100644
--- a/dist/js/datepicker.js
+++ b/dist/js/datepicker.js
@@ -376,6 +376,7 @@ var Datepicker;
 
             this._createShortCuts();
             this._syncWithMinMaxDates();
+            this._defineLocale(this.opts.language);
             this.nav._addButtonsIfNeed();
             this.nav._render();
             this.views[this.currentView]._render();
diff --git a/index.html b/index.html
index 20d642a..620acbf 100644
--- a/index.html
+++ b/index.html
@@ -37,6 +37,12 @@
                             .update('maxDate', date)
                 }
             })
+
+            $('button').on('click', function () {
+                $start.data('datepicker').update({
+                    language: 'en'
+                })
+            });
         </script>
     </body>
 </html>
\ No newline at end of file
diff --git a/js/datepicker/datepicker.js b/js/datepicker/datepicker.js
index 8f5e8f8..135ff55 100644
--- a/js/datepicker/datepicker.js
+++ b/js/datepicker/datepicker.js
@@ -376,6 +376,7 @@ var Datepicker;
 
             this._createShortCuts();
             this._syncWithMinMaxDates();
+            this._defineLocale(this.opts.language);
             this.nav._addButtonsIfNeed();
             this.nav._render();
             this.views[this.currentView]._render();