diff --git a/port_fwd.c b/port_fwd.c
index 7943a30..6f6c836 100644
--- a/port_fwd.c
+++ b/port_fwd.c
@@ -17,6 +17,8 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <sched.h>
+#include <unistd.h>
+#include <stdio.h>
 
 #include "util.h"
 #include "port_fwd.h"
diff --git a/util.h b/util.h
index 1f02588..86f1a7e 100644
--- a/util.h
+++ b/util.h
@@ -10,6 +10,7 @@
 #include <stdarg.h>
 #include <stdbool.h>
 #include <string.h>
+#include <signal.h>
 
 #include "log.h"