diff --git a/Formula/tmap.rb b/Formula/tmap.rb
index 78d4a12d828..b61ca3836c5 100644
--- a/Formula/tmap.rb
+++ b/Formula/tmap.rb
@@ -20,6 +20,6 @@ class Tmap < Formula
   end
 
   def test
-    system "tmap"
+    system "#{bin}/tmap -v"
   end
 end