diff --git a/test-fc15.cc b/test-fc15.cc
index 3e9374c..8b6d2c9 100644
--- a/test-fc15.cc
+++ b/test-fc15.cc
@@ -7,6 +7,7 @@
 #include "tcp.h"
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 
 #define SIZE_BUFFER 4096
 int main (int argc, char **argv) {
diff --git a/test-fc16.cc b/test-fc16.cc
index 5e3f1f1..e49fa0a 100644
--- a/test-fc16.cc
+++ b/test-fc16.cc
@@ -7,6 +7,7 @@
 #include "tcp.h"
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 
 #define SIZE_BUFFER 4096