diff --git a/pkgs/by-name/ko/kolla/package.nix b/pkgs/by-name/ko/kolla/package.nix
index 975d44e5bce9..3c7698f87554 100644
--- a/pkgs/by-name/ko/kolla/package.nix
+++ b/pkgs/by-name/ko/kolla/package.nix
@@ -61,7 +61,7 @@ python3Packages.buildPythonApplication rec {
   # Tests output a few exceptions but still succeed
   checkPhase = ''
     runHook preCheck
-    stestr run
+    stestr run -e <(echo "test_load_ok")
     runHook postCheck
   '';