diff --git a/common/client-core/src/client/inbound_messages.rs b/common/client-core/src/client/inbound_messages.rs
index 703934f96a..f1ef03a3d7 100644
--- a/common/client-core/src/client/inbound_messages.rs
+++ b/common/client-core/src/client/inbound_messages.rs
@@ -204,6 +204,7 @@ impl InputMessage {
         self
     }
 
+    #[allow(clippy::expect_used)]
     pub fn serialized_size(&self) -> u64 {
         make_bincode_serializer()
             .serialized_size(self)