diff --git a/themes/grav/css/codemirror/codemirror.css b/themes/grav/css/codemirror/codemirror.css
index e703d59a..4d10704e 100644
--- a/themes/grav/css/codemirror/codemirror.css
+++ b/themes/grav/css/codemirror/codemirror.css
@@ -263,6 +263,8 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
 
 .CodeMirror-widget {}
 
+.CodeMirror-rtl pre { direction: rtl; }
+
 .CodeMirror-code {
   outline: none;
 }