diff --git a/theme/bootstrapbase/less/moodle/core.less b/theme/bootstrapbase/less/moodle/core.less
index ba411f9c639..2999838fc23 100644
--- a/theme/bootstrapbase/less/moodle/core.less
+++ b/theme/bootstrapbase/less/moodle/core.less
@@ -17,7 +17,7 @@
 .empty-region-side-post #region-bs-main-and-pre.span9,
 .empty-region-side-pre #region-bs-main-and-post.span9,
 .empty-region-side-post #region-bs-main-and-post.span9 #region-main.span8 {
-    /** LTR with no post area. 
+    /** LTR with no post area.
         RTL with no pre area.
         RTL with no post area. **/
     width: 100%;