diff --git a/client/flash.c b/client/flash.c
index 37ee8fb0d..a2a90e663 100644
--- a/client/flash.c
+++ b/client/flash.c
@@ -11,6 +11,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <inttypes.h>
 #include "proxmark3.h"
 #include "sleep.h"
 #include "flash.h"
diff --git a/client/flasher.c b/client/flasher.c
index 86a0596cc..3adf98ad3 100644
--- a/client/flasher.c
+++ b/client/flasher.c
@@ -9,6 +9,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <inttypes.h>
 #include "sleep.h"
 #include "proxmark3.h"
 #include "flash.h"