diff --git a/modules/git/repo.go b/modules/git/repo.go
index c3de2eb0ad..db99d285a8 100644
--- a/modules/git/repo.go
+++ b/modules/git/repo.go
@@ -101,7 +101,9 @@ func InitRepository(ctx context.Context, repoPath string, bare bool, objectForma
 	if !IsValidObjectFormat(objectFormatName) {
 		return fmt.Errorf("invalid object format: %s", objectFormatName)
 	}
-	cmd.AddOptionValues("--object-format", objectFormatName)
+	if SupportHashSha256 {
+		cmd.AddOptionValues("--object-format", objectFormatName)
+	}
 
 	if bare {
 		cmd.AddArguments("--bare")