diff --git a/rotagen.c b/rotagen.c
index 64935c7..42211dd 100644
--- a/rotagen.c
+++ b/rotagen.c
@@ -7,8 +7,10 @@
 
 #include <math.h>
 #include <stdio.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <sys/time.h>
 
 #define POOL_SIZE 0x1000