diff --git a/Formula/gst-python.rb b/Formula/gst-python.rb
index 953703d911..5a5638c550 100644
--- a/Formula/gst-python.rb
+++ b/Formula/gst-python.rb
@@ -18,7 +18,7 @@ class GstPython < Formula
                           "--prefix=#{prefix}"
     system "make", "install"
   end
-  do test
-    system "gst-inspect-1.0", "-vd", "python"
+  test do
+    system "gst-inspect-1.0", "--vd", "python"
   end
 end