1 files changed, 1 insertions, 1 deletions
diff --git a/ffmpeg.c b/ffmpeg.c
index 31e9a0e158..c64100c7af 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -20,7 +20,7 @@
  */
 
 /* needed for usleep() */
-#define _XOPEN_SOURCE 500
+#define _XOPEN_SOURCE 600
 
 #include "config.h"
 #include <ctype.h>