diff --git a/src/sky9x/board_sky9x.cpp b/src/sky9x/board_sky9x.cpp
index 72316bd37..7678f74b0 100644
--- a/src/sky9x/board_sky9x.cpp
+++ b/src/sky9x/board_sky9x.cpp
@@ -34,6 +34,7 @@
 #include "../open9x.h"
 
 void pwrInit();
+void eepromInit();
 
 uint32_t Master_frequency ;
 volatile uint32_t Tenms ;