diff --git a/grunt/Gruntfile.js b/grunt/Gruntfile.js
index fb1307992..15edb3c26 100644
--- a/grunt/Gruntfile.js
+++ b/grunt/Gruntfile.js
@@ -31,7 +31,7 @@ module.exports = function(grunt) {
     },
 
     cssmin: {
-      '../static/dist/<%= pkg.name %>.css': ['../static/lib/**/*.css', '../static/css/*.css']
+      '../static/dist/<%= pkg.name %>.css': ['../static/lib/**/*.css', '../static/css/**/*.css']
     },
 
     uglify: {