diff --git a/plugins/Cardinal/src/Carla.cpp b/plugins/Cardinal/src/Carla.cpp
index 22f6c69..127c153 100644
--- a/plugins/Cardinal/src/Carla.cpp
+++ b/plugins/Cardinal/src/Carla.cpp
@@ -569,7 +569,7 @@ static void host_ui_closed(NativeHostHandle handle)
         ui->visible = false;
 }
 #else
-static void host_ui_closed(handle) {}
+static void host_ui_closed(NativeHostHandle) {}
 typedef ModuleWidget CarlaModuleWidget;
 #endif