diff --git a/Audio/Chain/Node.m b/Audio/Chain/Node.m
index fa100d826..91756a4a8 100644
--- a/Audio/Chain/Node.m
+++ b/Audio/Chain/Node.m
@@ -242,7 +242,7 @@ BOOL SetPriorityRealtimeAudio(mach_port_t mach_thread_id) {
 
 - (void)leaveWorkgroup {
 	if(@available(macOS 11, *)) {
-		if(wg && !isRealtimeError) {
+		if(wg && wgToken.sig && !isRealtimeError) {
 			os_workgroup_leave(wg, &wgToken);
 			bzero(&wgToken, sizeof(wgToken));
 			wg = nil;