diff --git a/client/c/.gitignore b/client/c/.gitignore
new file mode 100644
index 0000000..3966215
--- /dev/null
+++ b/client/c/.gitignore
@@ -0,0 +1,3 @@
+*.o
+yadync
+
diff --git a/client/c/yadync.c b/client/c/yadync.c
index cad88c2..f147463 100644
--- a/client/c/yadync.c
+++ b/client/c/yadync.c
@@ -6,6 +6,8 @@
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include <netinet/in.h>
+#include <unistd.h>
+
 
 #include "md5.h"