diff --git a/wp-includes/class-wp-editor.php b/wp-includes/class-wp-editor.php
index 04bb7c91a5..7aa9aff706 100644
--- a/wp-includes/class-wp-editor.php
+++ b/wp-includes/class-wp-editor.php
@@ -335,10 +335,8 @@ final class _WP_Editors {
 						$template_dir = get_template_directory();
 
 						foreach ( $editor_styles as $key => $file ) {
-							if ( $file && file_exists( "$template_dir/$file" ) ) {
+							if ( $file && file_exists( "$template_dir/$file" ) )
 								$mce_css[] = "$template_uri/$file";
-								$editor_styles[$key] = '';
-							}
 						}
 					}