diff --git a/theme/style.less b/theme/style.less
index b6632a6d..7318ca4b 100644
--- a/theme/style.less
+++ b/theme/style.less
@@ -37,6 +37,11 @@
     &:extend(.yellow all);
 }
 
+#filelist .menu {
+  width: 100%;
+}
+
+
 /*******************************
              Blockly
 *******************************/