diff --git a/core/embed/extmod/modtrezorutils/modtrezorutils-meminfo.h b/core/embed/extmod/modtrezorutils/modtrezorutils-meminfo.h
index 9488ff2ab..1c6ebd20c 100644
--- a/core/embed/extmod/modtrezorutils/modtrezorutils-meminfo.h
+++ b/core/embed/extmod/modtrezorutils/modtrezorutils-meminfo.h
@@ -36,6 +36,7 @@
 #include "embed/rust/librust.h"
 #include "embed/trezorhal/usb.h"
 
+#include <stdio.h>
 #include <string.h>
 
 #define WORDS_PER_BLOCK ((MICROPY_BYTES_PER_GC_BLOCK) / MP_BYTES_PER_OBJ_WORD)