1 files changed, 2 insertions, 1 deletions
diff --git a/convert.c b/convert.c
index 7d2a519daf..deaf0ba7b3 100644
--- a/convert.c
+++ b/convert.c
@@ -583,7 +583,8 @@ static int apply_multi_file_filter(const char *path, const char *src, size_t len
 
 	if (!subprocess_map_initialized) {
 		subprocess_map_initialized = 1;
-		hashmap_init(&subprocess_map, (hashmap_cmp_fn) cmd2process_cmp, 0);
+		hashmap_init(&subprocess_map, (hashmap_cmp_fn) cmd2process_cmp,
+			     NULL, 0);
 		entry = NULL;
 	} else {
 		entry = (struct cmd2process *)subprocess_find_entry(&subprocess_map, cmd);