diff --git a/pkgs/by-name/he/hello/package.nix b/pkgs/by-name/he/hello/package.nix
index 0590131913f46..e1cbf4b1df8c4 100644
--- a/pkgs/by-name/he/hello/package.nix
+++ b/pkgs/by-name/he/hello/package.nix
@@ -35,6 +35,7 @@ stdenv.mkDerivation (finalAttrs: {
   # Give hello some install checks for testing purpose.
   postInstallCheck = ''
     stat "''${!outputBin}/bin/${finalAttrs.meta.mainProgram}"
+    echo "I got changed"
   '';
 
   passthru.tests = {