diff --git a/layout/default/codemirror.css b/layout/default/codemirror.css
index 56f755f16..38a59d366 100644
--- a/layout/default/codemirror.css
+++ b/layout/default/codemirror.css
@@ -495,6 +495,7 @@ li.CodeMirror-hint-active {
 .cm-completionIcon {
   position: relative;
   font-size: 90%;
+  font-family: monospace;
   width: .8em;
   display: inline-block;
   text-align: center;