diff --git a/command/open_session.cpp b/command/open_session.cpp
index f88f433..0d82a06 100644
--- a/command/open_session.cpp
+++ b/command/open_session.cpp
@@ -11,8 +11,9 @@
 namespace command
 {
 
-std::vector<uint8_t> openSession(const std::vector<uint8_t>& inPayload,
-                                 std::shared_ptr<message::Handler>& handler)
+std::vector<uint8_t>
+    openSession(const std::vector<uint8_t>& inPayload,
+                std::shared_ptr<message::Handler>& /* handler */)
 {
     auto request =
         reinterpret_cast<const OpenSessionRequest*>(inPayload.data());