diff --git a/libavcodec/scpr.c b/libavcodec/scpr.c
index f1584355c035b05cea965eab57baa16af244cf2f..81597aa4dcf5975e7ea6873a8bfc6e94c0e14bd3 100644
--- a/libavcodec/scpr.c
+++ b/libavcodec/scpr.c
@@ -136,7 +136,7 @@ static int decode(GetByteContext *gb, RangeCoder *rc, unsigned cumFreq, unsigned
     rc->range *= freq;
 
     while (rc->range < TOP && bytestream2_get_bytes_left(gb) > 0) {
-        unsigned byte = bytestream2_get_byte(gb);
+        unsigned byte = bytestream2_get_byteu(gb);
         rc->code = (rc->code << 8) | byte;
         rc->range <<= 8;
     }
@@ -172,7 +172,7 @@ static int decode0(GetByteContext *gb, RangeCoder *rc, unsigned cumFreq, unsigne
     rc->range = rc->range * (uint64_t)(freq + cumFreq) / total_freq - (t + 1);
 
     while (rc->range < TOP && bytestream2_get_bytes_left(gb) > 0) {
-        unsigned byte = bytestream2_get_byte(gb);
+        unsigned byte = bytestream2_get_byteu(gb);
         rc->code = (rc->code << 8) | byte;
         rc->code1 <<= 8;
         rc->range <<= 8;