diff --git a/resources/js/ext.uls.i18n.js b/resources/js/ext.uls.i18n.js
index 50f7f9fb..27f082e2 100644
--- a/resources/js/ext.uls.i18n.js
+++ b/resources/js/ext.uls.i18n.js
@@ -53,7 +53,10 @@
 			return $.Deferred().resolve();
 		}
 		return i18n.load(
-			mw.util.wikiScript( 'api' ) + '?action=ulslocalization&language=' + locale,
+			mw.util.wikiScript( 'api' ) + '?' + $.param( {
+				action: 'ulslocalization',
+				language: locale
+			} ),
 			locale
 		);
 	};