diff --git a/src/wp-includes/js/tinymce/plugins/wpeditimage/plugin.js b/src/wp-includes/js/tinymce/plugins/wpeditimage/plugin.js
index ba190d7071..3b1667d425 100644
--- a/src/wp-includes/js/tinymce/plugins/wpeditimage/plugin.js
+++ b/src/wp-includes/js/tinymce/plugins/wpeditimage/plugin.js
@@ -176,7 +176,7 @@ tinymce.PluginManager.add( 'wpeditimage', function( editor ) {
 
 		windowPos = window.pageYOffset || document.documentElement.scrollTop;
 		adminbar = tinymce.$( '#wpadminbar' )[0];
-		mceToolbar = tinymce.$( '.mce-tinymce .mce-toolbar-grp' )[0];
+		mceToolbar = tinymce.$( '.mce-toolbar-grp', editor.getContainer() )[0];
 		boundary = imageNode.getBoundingClientRect();
 		boundaryMiddle = ( boundary.left + boundary.right ) / 2;
 		boundaryVerticalMiddle = ( boundary.top + boundary.bottom ) / 2;