diff --git a/main/threadstorage.c b/main/threadstorage.c
index b4d38c045a..b43568e080 100644
--- a/main/threadstorage.c
+++ b/main/threadstorage.c
@@ -56,7 +56,7 @@ void __ast_threadstorage_object_add(void *key, size_t len, const char *file, con
 {
 	struct tls_object *to;
 
-	if (!(to = ast_calloc(sizeof(*to), 1)))
+	if (!(to = ast_calloc(1, sizeof(*to))))
 		return;
 
 	to->key = key;