diff --git a/static/css/_blockly-toolbox.scss b/static/css/_blockly-toolbox.scss
index a3f8870445..3ec6e5818c 100644
--- a/static/css/_blockly-toolbox.scss
+++ b/static/css/_blockly-toolbox.scss
@@ -59,7 +59,7 @@
     border-width: thin;
     color: $brand-dark-gray;
     border-right: 0.063em solid;
-    width: 11em;	
+    min-width: 11em;
 }
 
 .blocklyIconShape {