diff --git a/lib/jquery.uls/src/jquery.uls.languagefilter.js b/lib/jquery.uls/src/jquery.uls.languagefilter.js
index 46c61c84..23c05e23 100644
--- a/lib/jquery.uls/src/jquery.uls.languagefilter.js
+++ b/lib/jquery.uls/src/jquery.uls.languagefilter.js
@@ -69,17 +69,18 @@
 						e.stopPropagation();
 					}
 					break;
-				case 13:
+				case 13: // Enter
 					if ( !this.options.onSelect ) {
 						break;
 					}
+					var query = $.trim( this.$element.val() ).toLowerCase();
 					if ( this.selectedLanguage ) {
 						// this.selectLanguage will be populated from a matching search
 						this.options.onSelect( this.selectedLanguage );
-					} else if ( this.options.languages[this.$element.val()] ) {
-						// Search is yet to happen(in timeout delay),
+					} else if ( this.options.languages[query] ) {
+						// Search is yet to happen (in timeout delay),
 						// but we have a matching language code.
-						this.options.onSelect( this.$element.val() );
+						this.options.onSelect( query );
 					}
 					break;
 				default:
@@ -147,7 +148,7 @@
 							// Autofill the first result.
 							this.autofill( langCode );
 						}
-						if ( query === langCode ) {
+						if ( query.toLowerCase() === langCode ) {
 							this.selectedLanguage = langCode;
 						}
 						this.render( langCode );