diff --git a/tests/plugin_net_config.c b/tests/plugin_net_config.c
index f11fa104e6..c064c537a8 100644
--- a/tests/plugin_net_config.c
+++ b/tests/plugin_net_config.c
@@ -12,6 +12,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
 #include "crosvm.h"