diff --git a/lib/gollum/frontend/public/css/gollum.css b/lib/gollum/frontend/public/css/gollum.css
index 69685fa4..6555013b 100644
--- a/lib/gollum/frontend/public/css/gollum.css
+++ b/lib/gollum/frontend/public/css/gollum.css
@@ -267,6 +267,7 @@ a:hover, a:visited {
   }
   
   #wiki-history table tr td.checkbox {
+    min-width: 2em;
     padding: 0.3em;
   }