diff --git a/src/bot.c b/src/bot.c
index a15e677..c65c0b5 100644
--- a/src/bot.c
+++ b/src/bot.c
@@ -14,6 +14,7 @@
 #include <sys/time.h>
 #include <dirent.h>
 #include <fcntl.h>
+#include <limits.h>
 
 #define MAX_ARGS 50
 #define MAX_SUBPROCS 50