diff --git a/test/testautomation_video.c b/test/testautomation_video.c
index ccaa2ed8a..4e2cfa593 100644
--- a/test/testautomation_video.c
+++ b/test/testautomation_video.c
@@ -3,6 +3,7 @@
  */
 
 #include <stdio.h>
+#include <string.h>
 
 /* Visual Studio 2008 doesn't have stdint.h */
 #if defined(_MSC_VER) && _MSC_VER <= 1500