diff --git a/util/network/src/host.rs b/util/network/src/host.rs
index f530503c6..d982481f9 100644
--- a/util/network/src/host.rs
+++ b/util/network/src/host.rs
@@ -591,7 +591,8 @@ impl Host {
 	}
 
 	fn handshake_count(&self) -> usize {
-		self.sessions.read().count() - self.session_count()
+		// session_count < total_count is possible because of the data race.
+		self.sessions.read().count().saturating_sub(self.session_count())
 	}
 
 	fn keep_alive(&self, io: &IoContext<NetworkIoMessage>) {