diff --git a/armsrc/Standalone/lf_hidfcbrute.c b/armsrc/Standalone/lf_hidfcbrute.c
index fb5337442..810a36308 100644
--- a/armsrc/Standalone/lf_hidfcbrute.c
+++ b/armsrc/Standalone/lf_hidfcbrute.c
@@ -22,6 +22,7 @@
  */
 
 #include "standalone.h"
+#include <inttypes.h>
 #include "lf_hidfcbrute.h"
 
 #include "proxmark3_arm.h"