diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c
index 2430804084df..153b5058e301 100644
--- a/sys/kern/kern_mutex.c
+++ b/sys/kern/kern_mutex.c
@@ -621,7 +621,7 @@ _mtx_lock_spin(struct mtx *m, int opts, const char *file, int line)
 		while (m->mtx_lock != MTX_UNOWNED) {
 			if (i++ < 10000000)
 				continue;
-			if (i++ < 60000000)
+			if (i < 60000000)
 				DELAY(1);
 #ifdef DDB
 			else if (!db_active)
diff --git a/sys/kern/subr_turnstile.c b/sys/kern/subr_turnstile.c
index 2430804084df..153b5058e301 100644
--- a/sys/kern/subr_turnstile.c
+++ b/sys/kern/subr_turnstile.c
@@ -621,7 +621,7 @@ _mtx_lock_spin(struct mtx *m, int opts, const char *file, int line)
 		while (m->mtx_lock != MTX_UNOWNED) {
 			if (i++ < 10000000)
 				continue;
-			if (i++ < 60000000)
+			if (i < 60000000)
 				DELAY(1);
 #ifdef DDB
 			else if (!db_active)