diff --git a/test-server/test-server-v2.0.c b/test-server/test-server-v2.0.c
index 61149f803..e3174dde8 100644
--- a/test-server/test-server-v2.0.c
+++ b/test-server/test-server-v2.0.c
@@ -19,6 +19,7 @@
  */
 
 #include <libwebsockets.h>
+#include <string.h>
 #include <getopt.h>
 #ifndef WIN32
 #include <syslog.h>