diff --git a/pkgs/by-name/gi/git/package.nix b/pkgs/by-name/gi/git/package.nix
index fa7bcc7cd054..072fe282a3e3 100644
--- a/pkgs/by-name/gi/git/package.nix
+++ b/pkgs/by-name/gi/git/package.nix
@@ -157,7 +157,7 @@ stdenv.mkDerivation (finalAttrs: {
     substituteInPlace contrib/credential/libsecret/Makefile \
         --replace-fail 'pkg-config' "$PKG_CONFIG"
   ''
-  + lib.optionalString doInstallCheck ''
+  + lib.optionalString finalAttrs.doInstallCheck ''
     # ensure we are using the correct shell when executing the test scripts
     patchShebangs t/*.sh
   ''