diff --git a/Multiprotocol/Validate.h b/Multiprotocol/Validate.h
index a28a23d..5aa2406 100644
--- a/Multiprotocol/Validate.h
+++ b/Multiprotocol/Validate.h
@@ -356,6 +356,9 @@
 	#undef	XK_CCNRF_INO
 	#undef	XK2_CCNRF_INO
 #endif
+#if defined(MCU_STM32F103C8)
+	#undef	BUMBLEB_CCNRF_INO
+#endif
 #if not defined(DSM_CYRF6936_INO)
 	#undef	LOSI_CYRF6936_INO
 #endif