diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index 663e26ebbd..7fc7e66e85 100644
--- a/builtin/name-rev.c
+++ b/builtin/name-rev.c
@@ -16,7 +16,7 @@ typedef struct rev_name {
 	int from_tag;
 } rev_name;
 
-static long cutoff = LONG_MAX;
+static timestamp_t cutoff = TIME_MAX;
 
 /* How many generations are maximally preferred over _one_ merge traversal? */
 #define MERGE_TRAVERSAL_WEIGHT 65535