Clean up exportGit argument handling

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libexpr/primops/fetchGit.hh b/src/libexpr/primops/fetchGit.hh
index 5937bdcc0..a867f38f6 100644
--- a/src/libexpr/primops/fetchGit.hh
+++ b/src/libexpr/primops/fetchGit.hh
@@ -10,13 +10,13 @@ struct GitInfo
 {
     Path storePath;
     std::string ref;
-    std::string rev;
-    std::string shortRev;
+    Hash rev{htSHA1};
     std::optional<uint64_t> revCount;
 };
 
 GitInfo exportGit(ref<Store> store, const std::string & uri,
-    std::optional<std::string> ref, std::string rev,
+    std::optional<std::string> ref,
+    std::optional<Hash> rev,
     const std::string & name);
 
 }