1 files changed, 2 insertions, 1 deletions
diff --git a/src/ctl.c b/src/ctl.c
index 296e74f..7f69f15 100644
--- a/src/ctl.c
+++ b/src/ctl.c
@@ -1199,7 +1199,8 @@ label_return:
 
 bool
 ctl_boot(void) {
-	if (malloc_mutex_init(&ctl_mtx, "ctl", WITNESS_RANK_CTL)) {
+	if (malloc_mutex_init(&ctl_mtx, "ctl", WITNESS_RANK_CTL,
+	    malloc_mutex_rank_exclusive)) {
 		return true;
 	}