diff --git a/sys/kern/kern_timeout.c b/sys/kern/kern_timeout.c
index 01da596643d3..71c88e0290b9 100644
--- a/sys/kern/kern_timeout.c
+++ b/sys/kern/kern_timeout.c
@@ -1032,7 +1032,7 @@ callout_reset_sbt_on(struct callout *c, sbintime_t sbt, sbintime_t precision,
 		 * currently in progress.  If there is a lock then we
 		 * can cancel the callout if it has not really started.
 		 */
-		if (c->c_lock != NULL && cc_exec_cancel(cc, direct))
+		if (c->c_lock != NULL && !cc_exec_cancel(cc, direct))
 			cancelled = cc_exec_cancel(cc, direct) = true;
 		if (cc_exec_waiting(cc, direct)) {
 			/*