diff --git a/src/wp-includes/js/tinymce/plugins/wplink/plugin.js b/src/wp-includes/js/tinymce/plugins/wplink/plugin.js
index d98c0da694..137e556372 100644
--- a/src/wp-includes/js/tinymce/plugins/wplink/plugin.js
+++ b/src/wp-includes/js/tinymce/plugins/wplink/plugin.js
@@ -158,7 +158,7 @@
 				editToolbar = editor.wp._createToolbar( editButtons, true );
 
 				editToolbar.on( 'show', function() {
-					if ( ! tinymce.$( document.body ).hasClass( 'modal-open' ) ) {
+					if ( typeof window.wpLink === 'undefiend' || ! window.wpLink.modalOpen ) {
 						window.setTimeout( function() {
 							var element = editToolbar.$el.find( 'input.ui-autocomplete-input' )[0],
 								selection = linkNode && ( linkNode.textContent || linkNode.innerText );
@@ -475,7 +475,7 @@
 			var linkNode = editor.dom.getParent( event.element, 'a' ),
 				$linkNode, href, edit;
 
-			if ( tinymce.$( document.body ).hasClass( 'modal-open' ) ) {
+			if ( typeof window.wpLink !== 'undefiend' && window.wpLink.modalOpen ) {
 				editToolbar.tempHide = true;
 				return;
 			}
diff --git a/src/wp-includes/js/wplink.js b/src/wp-includes/js/wplink.js
index d4511369b1..e3f93dab5f 100644
--- a/src/wp-includes/js/wplink.js
+++ b/src/wp-includes/js/wplink.js
@@ -19,6 +19,7 @@ var wpLink;
 		keySensitivity: 100,
 		lastSearch: '',
 		textarea: '',
+		modalOpen: false,
 
 		init: function() {
 			inputs.wrap = $('#wp-link-wrap');
@@ -97,6 +98,7 @@ var wpLink;
 				$body = $( document.body );
 
 			$body.addClass( 'modal-open' );
+			wpLink.modalOpen = true;
 			linkNode = node;
 
 			wpLink.range = null;
@@ -274,6 +276,7 @@ var wpLink;
 
 		close: function( reset ) {
 			$( document.body ).removeClass( 'modal-open' );
+			wpLink.modalOpen = false;
 
 			if ( reset !== 'noReset' ) {
 				if ( ! wpLink.isMCE() ) {