diff --git a/radio/src/thirdparty/libopenui/src/libopenui_file.h b/radio/src/thirdparty/libopenui/src/libopenui_file.h
index ee4d49c32..966c4ae7f 100644
--- a/radio/src/thirdparty/libopenui/src/libopenui_file.h
+++ b/radio/src/thirdparty/libopenui/src/libopenui_file.h
@@ -24,6 +24,7 @@
 #include <string.h>
 #include <inttypes.h>
 #include "ff.h"
+#include "libopenui_defines.h"
 
 constexpr uint8_t LEN_FILE_EXTENSION_MAX = 5;  // longest used, including the dot, excluding null term.