diff --git a/src/proto_sockpair.c b/src/proto_sockpair.c
index e7dd670..23c8f95 100644
--- a/src/proto_sockpair.c
+++ b/src/proto_sockpair.c
@@ -158,7 +158,7 @@
 	listener->state = LI_LISTEN;
 
 	fd_insert(fd, listener, listener->proto->accept,
-	          thread_mask(listener->bind_conf->bind_thread));
+	          thread_mask(listener->bind_conf->bind_thread) & all_threads_mask);
 
 	return err;
 
diff --git a/src/proto_tcp.c b/src/proto_tcp.c
index cfd58e6..c6f70d2 100644
--- a/src/proto_tcp.c
+++ b/src/proto_tcp.c
@@ -1082,7 +1082,7 @@
 	listener->state = LI_LISTEN;
 
 	fd_insert(fd, listener, listener->proto->accept,
-	          thread_mask(listener->bind_conf->bind_thread));
+	          thread_mask(listener->bind_conf->bind_thread) & all_threads_mask);
 
  tcp_return:
 	if (msg && errlen) {
diff --git a/src/proto_uxst.c b/src/proto_uxst.c
index 9dd4bb4..df813a1 100644
--- a/src/proto_uxst.c
+++ b/src/proto_uxst.c
@@ -343,7 +343,7 @@
 	listener->state = LI_LISTEN;
 
 	fd_insert(fd, listener, listener->proto->accept,
-	          thread_mask(listener->bind_conf->bind_thread));
+	          thread_mask(listener->bind_conf->bind_thread) & all_threads_mask);
 
 	return err;