diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index 29bed9ace2..38908abf7d 100644
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -793,8 +793,8 @@ static void dvbsub_parse_pixel_data_block(AVCodecContext *avctx, DVBSubObjectDis
         y_pos++;
 
     while (buf < buf_end) {
-        if (x_pos > region->width || y_pos > region->height) {
-            av_log(avctx, AV_LOG_ERROR, "Invalid object location!\n");
+        if (x_pos >= region->width || y_pos >= region->height) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid object location! %d-%d %d-%d %02x\n", x_pos, region->width, y_pos, region->height, *buf);
             return;
         }