diff --git a/radio/src/sdcard.cpp b/radio/src/sdcard.cpp
index c1c638c08..e8517766a 100644
--- a/radio/src/sdcard.cpp
+++ b/radio/src/sdcard.cpp
@@ -19,6 +19,7 @@
  */
 
 #include <stdint.h>
+#include "diskio.h"
 #include "opentx.h"
 
 const char * sdCheckAndCreateDirectory(const char * path)