diff --git a/wfmain.h b/wfmain.h
index 1c8177a..81f1cc4 100644
--- a/wfmain.h
+++ b/wfmain.h
@@ -743,6 +743,7 @@ private:
 
     void initPeriodicCommands();
     void insertPeriodicCommand(cmds cmd, unsigned char priority);
+    void insertSlowPeriodicCommand(cmds cmd, unsigned char priority);
 
     void calculateTimingParameters();