diff --git a/crates/matrix-sdk-crypto/src/types/events/room_key_withheld.rs b/crates/matrix-sdk-crypto/src/types/events/room_key_withheld.rs
index 585297fd4..0547535f0 100644
--- a/crates/matrix-sdk-crypto/src/types/events/room_key_withheld.rs
+++ b/crates/matrix-sdk-crypto/src/types/events/room_key_withheld.rs
@@ -131,7 +131,7 @@ impl RoomKeyWithheldContent {
                     from_device
                 )
             }
-            _ => unreachable!("Unsupported algorithm {}", algorithm),
+            _ => unreachable!("Unsupported algorithm {algorithm}"),
         }
     }