diff --git a/tests/index.js b/tests/index.js
index 3455301..5e9d7d2 100644
--- a/tests/index.js
+++ b/tests/index.js
@@ -877,7 +877,11 @@ describe('css', () => {
         { '&&': { 'color': 'browner' } } 
       ] }
     ])
-    
+
+  })
+
+  it('can handle data-css-nil nullrule', () => {
+    let rule = css({'data-css-nil': ''})
   })
 })