diff --git a/theme/boost/scss/moodle/print.scss b/theme/boost/scss/moodle/print.scss
index 16ade3599df..e5bfb9c3a44 100644
--- a/theme/boost/scss/moodle/print.scss
+++ b/theme/boost/scss/moodle/print.scss
@@ -2,7 +2,7 @@
     // Fix body margin for drawer in print mode.
     body.drawer-open-left.jsenabled,
     body.drawer-open-right.jsenabled {
-        margin: 0px;
+        margin: 0;
     }
 
     // Safari fix see: http://v4-alpha.getbootstrap.com/getting-started/browsers-devices/#printing.