diff --git a/kernel/timeout.c b/kernel/timeout.c
index e5f3b05f2e..d10b3e6b0a 100644
--- a/kernel/timeout.c
+++ b/kernel/timeout.c
@@ -194,12 +194,13 @@ int32_t z_get_next_timeout_expiry(void)
 	return ret;
 }
 
-void z_set_timeout_expiry(int32_t ticks, bool idle)
+void z_set_timeout_expiry(int32_t ticks, bool is_idle)
 {
 	LOCKED(&timeout_lock) {
-		int next = next_timeout();
-		bool sooner = (next == K_TICKS_FOREVER) || (ticks < next);
-		bool imminent = next <= 1;
+		int next_to = next_timeout();
+		bool sooner = (next_to == K_TICKS_FOREVER)
+			      || (ticks < next_to);
+		bool imminent = next_to <= 1;
 
 		/* Only set new timeouts when they are sooner than
 		 * what we have.  Also don't try to set a timeout when
@@ -212,7 +213,7 @@ void z_set_timeout_expiry(int32_t ticks, bool idle)
 		 * in.
 		 */
 		if (!imminent && (sooner || IS_ENABLED(CONFIG_SMP))) {
-			z_clock_set_timeout(ticks, idle);
+			z_clock_set_timeout(ticks, is_idle);
 		}
 	}
 }