diff --git a/less/glyphicons.less b/less/glyphicons.less
index 0e0ba986c3..82915ce691 100644
--- a/less/glyphicons.less
+++ b/less/glyphicons.less
@@ -29,6 +29,10 @@
   -webkit-font-smoothing: antialiased;
 }
 
+.glyphicon-block{
+  width: 1em;
+}
+
 // Individual icons
 .glyphicon-asterisk               { &:before { content: "\2a"; } }
 .glyphicon-plus                   { &:before { content: "\2b"; } }