diff --git a/debian/tests/control b/debian/tests/control
index 0bc1ecc9..efe9f346 100644
--- a/debian/tests/control
+++ b/debian/tests/control
@@ -1,3 +1,3 @@
-Test-Command: sh ./debian/qualify-clang.sh
+Test-Command: sh -v ./debian/qualify-clang.sh
 Depends: @
 Restrictions: allow-stderr