diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/livepreview.js b/lib/gollum/frontend/public/gollum/livepreview/js/livepreview.js
index 7f82463e..2ee8929f 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/livepreview.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/livepreview.js
@@ -249,6 +249,8 @@ function pygmentsLanguageToAceMode( declaredLanguage ) {
   declaredLanguage = declaredLanguage.toLowerCase();
 
   switch ( declaredLanguage ) {
+    case 'bash':
+      return 'sh';
     case 'c':
     case 'c++':
     case 'cpp':