diff --git a/code/espurna/ota_base.h b/code/espurna/ota_base.h
index 63ab4ea222..811c4b83fc 100644
--- a/code/espurna/ota_base.h
+++ b/code/espurna/ota_base.h
@@ -1,5 +1,8 @@
 #pragma once
 
+void otaDebugProgress(unsigned int bytes);
+void otaDebugError();
+
 bool otaBegin();
 bool otaWrite(uint8_t* data, size_t len);
 bool otaEnd(size_t size, unsigned char reset_reason = 0);