diff --git a/test/hooks.c b/test/hooks.c
index 0e3c4f0e0e..b3bcbd9e41 100644
--- a/test/hooks.c
+++ b/test/hooks.c
@@ -70,7 +70,7 @@ static int test_init_hook(void)
 
 static int test_ticks(void)
 {
-	uint64_t interval;
+	int64_t interval;
 	int error_pct;
 
 	/*