diff --git a/app.go b/app.go
index 668e23b..363b38b 100644
--- a/app.go
+++ b/app.go
@@ -58,7 +58,6 @@ type Headscale struct {
 	aclPolicy *ACLPolicy
 	aclRules  *[]tailcfg.FilterRule
 
-	pollMu         sync.Mutex
 	clientsPolling sync.Map
 }