diff --git a/subsys/task_wdt/task_wdt.c b/subsys/task_wdt/task_wdt.c
index a3a9b87d85c..6693a6287bd 100644
--- a/subsys/task_wdt/task_wdt.c
+++ b/subsys/task_wdt/task_wdt.c
@@ -50,7 +50,7 @@ static int hw_wdt_channel;
 static bool hw_wdt_started;
 #endif
 
-static void schedule_next_timeout(uint32_t current_ticks)
+static void schedule_next_timeout(int64_t current_ticks)
 {
 	int next_channel_id;	/* channel which will time out next */
 	int64_t next_timeout;   /* timeout in absolute ticks of this channel */