1 files changed, 2 insertions, 1 deletions
diff --git a/video/zimg.c b/video/zimg.c
index 635696f686..2f52537c07 100644
--- a/video/zimg.c
+++ b/video/zimg.c
@@ -1137,7 +1137,8 @@ static bool setup_format_ne(zimg_image_format *zfmt, struct mp_zimg_repack *r,
             r->z_planes[3] = n; // alpha, always plane 4 in zimg
 
 #if HAVE_ZIMG_ALPHA
-            zfmt->alpha = ZIMG_ALPHA_STRAIGHT;
+            zfmt->alpha = fmt.alpha == MP_ALPHA_PREMUL
+                ? ZIMG_ALPHA_PREMULTIPLIED : ZIMG_ALPHA_STRAIGHT;
 #else
             return false;
 #endif