diff --git a/src/ScreenServiceAction.h b/src/ScreenServiceAction.h
index 35011f0106..174d80e57e 100644
--- a/src/ScreenServiceAction.h
+++ b/src/ScreenServiceAction.h
@@ -5,6 +5,8 @@
 
 #include "ScreenPrompt.h"
 
+RString ClearMachineStats();
+
 class ScreenServiceAction : public ScreenPrompt
 {
 public: