diff --git a/tools/rep.c b/tools/rep.c
index 923136b..a8baa4d 100644
--- a/tools/rep.c
+++ b/tools/rep.c
@@ -3,7 +3,7 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
-#include <strings.h>
+#include <string.h>
 
 
 char *