diff --git a/extension.json b/extension.json
index 1ee295d9..89a74e16 100644
--- a/extension.json
+++ b/extension.json
@@ -172,8 +172,7 @@
 			"dependencies": [
 				"mediawiki.jqueryMsg",
 				"mediawiki.language",
-				"ext.uls.common",
-				"mediawiki.ui.button"
+				"ext.uls.common"
 			],
 			"messages": [
 				"ext-uls-compact-link-count",
diff --git a/resources/js/ext.uls.compactlinks.js b/resources/js/ext.uls.compactlinks.js
index 72038c78..392d7333 100644
--- a/resources/js/ext.uls.compactlinks.js
+++ b/resources/js/ext.uls.compactlinks.js
@@ -190,7 +190,9 @@
 			this.compactList[ language ].parentNode.style.display = '';
 		}
 
-		this.addTrigger();
+		mw.loader.using( 'mediawiki.ui.button' ).then( function () {
+			this.addTrigger();
+		}.bind( this ) );
 
 		mw.hook( 'mw.uls.compactlinks.initialized' ).fire( true );
 	};
diff --git a/resources/js/ext.uls.interface.js b/resources/js/ext.uls.interface.js
index 999b83b3..e9b8a0ae 100644
--- a/resources/js/ext.uls.interface.js
+++ b/resources/js/ext.uls.interface.js
@@ -578,7 +578,7 @@
 
 		ev.preventDefault();
 
-		mw.loader.using( 'ext.uls.mediawiki' ).then( function () {
+		mw.loader.using( [ 'ext.uls.mediawiki', 'mediawiki.ui.button' ] ).then( function () {
 			var parent, languageNodes, standalone, uls;
 
 			parent = document.querySelectorAll( '.mw-portlet-lang, #p-lang' )[ 0 ];