diff --git a/src/validation.c b/src/validation.c
index ee3232d..1c7b2c4 100644
--- a/src/validation.c
+++ b/src/validation.c
@@ -12,12 +12,12 @@ static int validate_video_pixel_format(enum AVPixelFormat format)
 {
     switch (format) {
     // Still image formats
-    case AV_PIX_FMT_YA8:
     case AV_PIX_FMT_YA16:
     case AV_PIX_FMT_GRAY8:
     case AV_PIX_FMT_GRAY8A:
     case AV_PIX_FMT_GRAY10:
     case AV_PIX_FMT_GRAY12:
+    case AV_PIX_FMT_GRAY16:
     case AV_PIX_FMT_PAL8:
     case AV_PIX_FMT_RGB8:
     case AV_PIX_FMT_RGB24: