diff --git a/lib/isc/netmgr/netmgr.c b/lib/isc/netmgr/netmgr.c
index f9affb2c04..2662b22050 100644
--- a/lib/isc/netmgr/netmgr.c
+++ b/lib/isc/netmgr/netmgr.c
@@ -323,6 +323,7 @@ isc__netmgr_create(isc_mem_t *mctx, uint32_t workers, isc_nm_t **netmgrp) {
 		RUNTIME_CHECK(r == 0);
 
 		isc_mutex_init(&worker->lock);
+		isc_condition_init(&worker->cond_prio);
 
 		for (size_t type = 0; type < NETIEVENT_MAX; type++) {
 			worker->ievents[type] = isc_queue_new(mgr->mctx, 128);