diff --git a/tests/test-form-data-error.js b/tests/test-form-data-error.js
index 7111e033b..09beb317e 100644
--- a/tests/test-form-data-error.js
+++ b/tests/test-form-data-error.js
@@ -75,7 +75,7 @@ tape('form-data should throw on null value', function (t) {
         key: null
       }
     })
-  }, /Cannot read property 'path' of null/)
+  }, TypeError)
   t.end()
 })
 
@@ -83,4 +83,4 @@ tape('cleanup', function(t) {
   s.close(function() {
     t.end()
   })
-})
\ No newline at end of file
+})