diff --git a/common/js/plugins/ckeditor/ckeditor/plugins/rx_upload/plugin.js b/common/js/plugins/ckeditor/ckeditor/plugins/rx_upload/plugin.js
index 62391fed0..5afe6ca3a 100644
--- a/common/js/plugins/ckeditor/ckeditor/plugins/rx_upload/plugin.js
+++ b/common/js/plugins/ckeditor/ckeditor/plugins/rx_upload/plugin.js
@@ -7,6 +7,11 @@ CKEDITOR.plugins.add('rx_upload', {
 
 	init: function(editor) {
 
+		/**
+		 * Prevent the clipboard plugin from interfering with file type support.
+		 */
+		editor.plugins.clipboard._supportedFileMatchers.unshift(function() { return true; });
+
 		/**
 		 * The main event handler for paste and drop.
 		 */