1 files changed, 1 insertions, 0 deletions
diff --git a/chatbot.c b/chatbot.c
index 775eda4..ddc0eff 100644
--- a/chatbot.c
+++ b/chatbot.c
@@ -3,6 +3,7 @@
 #include "strings.h"
 #include <games.h>
 #include <string.h>
+#include <unistd.h>
 void do_chatbot(void)
 {
   int stage=0; /* stage 0: i'm fine how are you... ->