diff --git a/firmware/config/boards/subaru_eg33/board.c b/firmware/config/boards/subaru_eg33/board.c
index 3e20a60206..0cfa52c542 100644
--- a/firmware/config/boards/subaru_eg33/board.c
+++ b/firmware/config/boards/subaru_eg33/board.c
@@ -7,7 +7,7 @@
 
 #include "hal.h"
 #include "stm32_gpio.h"
-#include "efilib.h"
+#include "unused.h"
 
 #include "board_io.h"
 
diff --git a/firmware/util/efilib.h b/firmware/util/efilib.h
index b230ffddf7..70cac54eea 100644
--- a/firmware/util/efilib.h
+++ b/firmware/util/efilib.h
@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include "unused.h"
 #include <stdint.h>
 
 #ifdef __cplusplus
@@ -53,9 +54,6 @@ int mytolower(const char c);
 int efiPow10(int param);
 bool startsWith(const char *line, const char *prefix);
 
-#ifndef UNUSED
-#define UNUSED(x) (void)(x)
-#endif
 
 /**
  * Rounds value to specified precision.
diff --git a/firmware/util/unused.h b/firmware/util/unused.h
new file mode 100644
index 0000000000..c722b4e019
--- /dev/null
+++ b/firmware/util/unused.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#ifndef UNUSED
+#define UNUSED(x) (void)(x)
+#endif