diff --git a/src/main/c/Pong/pong.c b/src/main/c/Pong/pong.c
index 44cfbc5..27e3c70 100644
--- a/src/main/c/Pong/pong.c
+++ b/src/main/c/Pong/pong.c
@@ -2,6 +2,7 @@
 #include <termios.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <fcntl.h>
 
 #define WIDTH 40 //Breite Spielfeld
 #define HEIGHT 20 //Höhe Spielfeld