diff --git a/firmware/export/rolo.h b/firmware/export/rolo.h
index b95a27e879..7b3d60f6e6 100644
--- a/firmware/export/rolo.h
+++ b/firmware/export/rolo.h
@@ -19,7 +19,7 @@
 #ifndef __ROLO_H__
 #define __ROLO_H__
 
-void rolo_load(char* file);
+int rolo_load(const char* file);
 
 #ifdef CPU_PP
 void rolo_restart_cop(void);
diff --git a/firmware/rolo.c b/firmware/rolo.c
index 1b29affb25..5dbb6f9874 100644
--- a/firmware/rolo.c
+++ b/firmware/rolo.c
@@ -31,6 +31,7 @@
 #include "adc.h"
 #include "string.h"
 #include "buffer.h"
+#include "rolo.h"
 
 #ifdef MI4_FORMAT
 #include "crc32-mi4.h"