diff --git a/src/ViewsBootstrap.php b/src/ViewsBootstrap.php
index 5f55194..cf30a23 100644
--- a/src/ViewsBootstrap.php
+++ b/src/ViewsBootstrap.php
@@ -112,8 +112,10 @@ class ViewsBootstrap {
     if (preg_match('~col-[a-z]{2}-([0-9]*)~', $size, $matches)) {
       return 12 / $matches[1];
     }
+    if (preg_match('~col-([0-9]*)~', $size, $matches)) {
+      return 12 / $matches[1];
+    }
 
     return FALSE;
   }
-
 }