diff --git a/combine-diff.c b/combine-diff.c
index 20f8a03..fa5967a 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -332,7 +332,7 @@ static char *grab_blob(struct repository *r,
 		*size = fill_textconv(r, textconv, df, &blob);
 		free_filespec(df);
 	} else {
-		blob = repo_read_object_file(the_repository, oid, &type, size);
+		blob = repo_read_object_file(r, oid, &type, size);
 		if (type != OBJ_BLOB)
 			die("object '%s' is not a blob!", oid_to_hex(oid));
 	}