diff --git a/libavcodec/intelh263dec.c b/libavcodec/intelh263dec.c
index a45560c925..5da420243d 100644
--- a/libavcodec/intelh263dec.c
+++ b/libavcodec/intelh263dec.c
@@ -111,11 +111,8 @@ int ff_intel_h263_decode_picture_header(MpegEncContext *s)
     }
 
     /* PEI */
-    while (get_bits1(&s->gb) != 0) {
-        skip_bits(&s->gb, 8);
-        if (get_bits_left(&s->gb) <= 0)
-            return AVERROR_INVALIDDATA;
-    }
+    if (skip_1stop_8data_bits(&s->gb) < 0)
+        return AVERROR_INVALIDDATA;
     s->f_code = 1;
 
     s->y_dc_scale_table=