1 files changed, 1 insertions, 0 deletions
diff --git a/flash.h b/flash.h
index c1d89802f..1a9bd9f07 100644
--- a/flash.h
+++ b/flash.h
@@ -314,6 +314,7 @@ uint8_t reverse_byte(uint8_t x);
 void reverse_bytes(uint8_t *dst, const uint8_t *src, size_t length);
 #ifdef __MINGW32__
 char* strtok_r(char *str, const char *delim, char **nextp);
+char *strndup(const char *str, size_t size);
 #endif
 #if defined(__DJGPP__) || (!defined(__LIBPAYLOAD__) && !defined(HAVE_STRNLEN))
 size_t strnlen(const char *str, size_t n);