diff --git a/src/main.rs b/src/main.rs
index caf3b78..c4e65c0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -578,7 +578,7 @@ impl State {
 
                 // if peer is connected and endpoint is the correct one,
                 // set higher keepalive and then skip reconfiguring it
-                if !bad_endpoint && now < peer.last_seen + TIMEOUT.as_secs() {
+                if !bad_endpoint && peer.last_seen != u64::MAX && now < peer.last_seen + TIMEOUT.as_secs() {
                     Command::new("wg")
                         .args([
                             "set",