diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c
index da6fb7af03..3d8219a451 100644
--- a/libavcodec/cdgraphics.c
+++ b/libavcodec/cdgraphics.c
@@ -238,7 +238,7 @@ static void cdg_scroll(CDGraphicsContext *cc, uint8_t *data,
     for (y = FFMAX(0, vinc); y < FFMIN(CDG_FULL_HEIGHT + vinc, CDG_FULL_HEIGHT); y++)
         memcpy(out + FFMAX(0, hinc) + stride * y,
                in + FFMAX(0, hinc) - hinc + (y - vinc) * stride,
-               FFMIN(stride + hinc, stride));
+               FFABS(stride) - FFABS(hinc));
 
     if (vinc > 0)
         cdg_fill_wrapper(0, 0, out,