diff --git a/host-interface.cpp b/host-interface.cpp
index ffd1aaf..e413fb7 100644
--- a/host-interface.cpp
+++ b/host-interface.cpp
@@ -78,7 +78,7 @@
         std::make_shared<std::optional<Host::FirmwareCondition>>();
 
     // callback for command to host
-    auto hostAckCallback = [hostCondition](IpmiCmdData cmd, bool status) {
+    auto hostAckCallback = [hostCondition](IpmiCmdData, bool status) {
         auto value = status ? Host::FirmwareCondition::Running
                             : Host::FirmwareCondition::Off;