diff --git a/pack-bitmap.c b/pack-bitmap.c
index 1fe50f92a6..b6bf454c11 100644
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -314,10 +314,10 @@ static int open_midx_bitmap_1(struct bitmap_index *bitmap_git,
 			      struct multi_pack_index *midx)
 {
 	struct stat st;
-	char *idx_name = midx_bitmap_filename(midx);
-	int fd = git_open(idx_name);
+	char *bitmap_name = midx_bitmap_filename(midx);
+	int fd = git_open(bitmap_name);
 
-	free(idx_name);
+	free(bitmap_name);
 
 	if (fd < 0)
 		return -1;
@@ -369,14 +369,14 @@ static int open_pack_bitmap_1(struct bitmap_index *bitmap_git, struct packed_git
 {
 	int fd;
 	struct stat st;
-	char *idx_name;
+	char *bitmap_name;
 
 	if (open_pack_index(packfile))
 		return -1;
 
-	idx_name = pack_bitmap_filename(packfile);
-	fd = git_open(idx_name);
-	free(idx_name);
+	bitmap_name = pack_bitmap_filename(packfile);
+	fd = git_open(bitmap_name);
+	free(bitmap_name);
 
 	if (fd < 0)
 		return -1;