diff --git a/src/ws/robust/subs.rs b/src/ws/robust/subs.rs
index b1ebce1..67a2b04 100644
--- a/src/ws/robust/subs.rs
+++ b/src/ws/robust/subs.rs
@@ -89,7 +89,7 @@ impl Subs {
 
         debug!("Adding sub with id: {} ({})", id, topic_key);
 
-        if subs.iter().find(|s| s.topic_key == topic_key).is_none() {
+        if !subs.iter().any(|s| s.topic_key == topic_key) {
             debug!("First subscription for this topic, sending subscribe command");
 
             Stream::send_command(
@@ -125,7 +125,7 @@ impl Subs {
         subs.retain(|s| s.id != sub_id);
 
         // Send unsub if no subs have topic_key of token.topic_key anymore
-        if subs.iter().find(|s| s.topic_key == topic_key).is_none() {
+        if !subs.iter().any(|s| s.topic_key == topic_key) {
             debug!(
                 "Last subscriber removed. Sending unsubscribe for topic: {}",
                 topic_key