diff --git a/presence/fallback.cpp b/presence/fallback.cpp
index 4a025a7..36824fc 100644
--- a/presence/fallback.cpp
+++ b/presence/fallback.cpp
@@ -31,7 +31,7 @@
 namespace presence
 {
 
-void Fallback::stateChanged(bool present, PresenceSensor& sensor)
+void Fallback::stateChanged(bool present, PresenceSensor& /*sensor*/)
 {
     if (!present)
     {