--- a/src/lib/cache.c	Sat Oct 04 15:13:56 2014 +0300
+++ b/src/lib/cache.c	Mon Jul 03 23:15:14 2017 +0300
@@ -4,6 +4,7 @@
 #include "error.h"
 
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>