diff --git a/crates/nostr-sdk/src/relay/mod.rs b/crates/nostr-sdk/src/relay/mod.rs
index 62ee02b8f..77938568f 100644
--- a/crates/nostr-sdk/src/relay/mod.rs
+++ b/crates/nostr-sdk/src/relay/mod.rs
@@ -197,7 +197,7 @@ where
         match s.as_str() {
             "default" => Self::Default,
             "pool" => Self::Pool,
-            c => Self::Custom(c.to_string()),
+            _ => Self::Custom(s),
         }
     }
 }
diff --git a/crates/nostr/src/event/tag.rs b/crates/nostr/src/event/tag.rs
index 81420b0df..964c058fd 100644
--- a/crates/nostr/src/event/tag.rs
+++ b/crates/nostr/src/event/tag.rs
@@ -160,7 +160,7 @@ where
         match s.as_str() {
             "root" => Self::Root,
             "reply" => Self::Reply,
-            m => Self::Custom(m.to_string()),
+            _ => Self::Custom(s),
         }
     }
 }
@@ -232,7 +232,7 @@ where
             "planned" => Self::Planned,
             "live" => Self::Live,
             "ended" => Self::Ended,
-            s => Self::Custom(s.to_string()),
+            _ => Self::Custom(s),
         }
     }
 }
@@ -545,8 +545,8 @@ where
     S: Into<String>,
 {
     fn from(s: S) -> Self {
-        let s: String = s.into();
-        match s.as_str() {
+        let tag: String = s.into();
+        match tag.as_str() {
             "p" => Self::P,
             "e" => Self::E,
             "r" => Self::R,
@@ -595,7 +595,7 @@ where
             "anon" => Self::Anon,
             "proxy" => Self::Proxy,
             "emoji" => Self::Emoji,
-            tag => Self::Custom(tag.to_string()),
+            _ => Self::Custom(tag),
         }
     }
 }
diff --git a/crates/nostr/src/message/relay/mod.rs b/crates/nostr/src/message/relay/mod.rs
index d41697cf2..2509d28c3 100644
--- a/crates/nostr/src/message/relay/mod.rs
+++ b/crates/nostr/src/message/relay/mod.rs
@@ -57,7 +57,7 @@ where
             "CLOSED" => Self::Closed,
             "FILTER_NOT_FOUND" => Self::FilterNotFound,
             "FILTER_INVALID" => Self::FilterInvalid,
-            o => Self::Other(o.to_string()),
+            _ => Self::Other(code),
         }
     }
 }
diff --git a/crates/nostr/src/nips/nip48.rs b/crates/nostr/src/nips/nip48.rs
index e64c670a1..5b718600b 100644
--- a/crates/nostr/src/nips/nip48.rs
+++ b/crates/nostr/src/nips/nip48.rs
@@ -5,7 +5,7 @@
 //!
 //! <https://github.com/nostr-protocol/nips/blob/master/48.md>
 
-use alloc::string::{String, ToString};
+use alloc::string::String;
 use core::fmt;
 
 /// NIP48 Proxy Protocol
@@ -46,7 +46,7 @@ where
             "atproto" => Self::ATProto,
             "rss" => Self::Rss,
             "web" => Self::Web,
-            s => Self::Custom(s.to_string()),
+            _ => Self::Custom(s),
         }
     }
 }