diff --git a/decoder/ih264d_parse_pslice.c b/decoder/ih264d_parse_pslice.c
index e2acd4a..63fa179 100644
--- a/decoder/ih264d_parse_pslice.c
+++ b/decoder/ih264d_parse_pslice.c
@@ -1596,7 +1596,7 @@
             {
                 if(ps_dec->u1_separate_parse)
                 {
-                    ps_cur_mb_info = ps_dec->ps_nmb_info - 1;
+                    ps_cur_mb_info = ps_dec->ps_nmb_info;
                 }
                 else
                 {