diff --git a/less/dropdowns.less b/less/dropdowns.less
index 8d0a6a2d01..3eb7fc05c4 100644
--- a/less/dropdowns.less
+++ b/less/dropdowns.less
@@ -155,6 +155,7 @@
   font-size: @font-size-small;
   line-height: @line-height-base;
   color: @dropdown-header-color;
+  white-space: nowrap; // as with > li > a
 }
 
 // Backdrop to catch body clicks on mobile, etc.