diff --git a/libavcodec/prores_raw.c b/libavcodec/prores_raw.c
index 81d96f16dd..a872677e77 100644
--- a/libavcodec/prores_raw.c
+++ b/libavcodec/prores_raw.c
@@ -355,7 +355,7 @@ static int decode_frame(AVCodecContext *avctx,
         return AVERROR_INVALIDDATA;
 
     /* ProRes RAW frame */
-    if (bytestream2_get_le32(&gb) != MKTAG('p','r','r','f'))
+    if (bytestream2_get_be32(&gb) != MKBETAG('p','r','r','f'))
         return AVERROR_INVALIDDATA;
 
     int header_len = bytestream2_get_be16(&gb);
diff --git a/libavcodec/prores_raw_parser.c b/libavcodec/prores_raw_parser.c
index fca3ec37fb..c67935a820 100644
--- a/libavcodec/prores_raw_parser.c
+++ b/libavcodec/prores_raw_parser.c
@@ -46,7 +46,7 @@ static int prores_raw_parse(AVCodecParserContext *s, AVCodecContext *avctx,
     if (bytestream2_get_be32(&gb) != buf_size) /* Packet size */
         return buf_size;
 
-    if (bytestream2_get_le32(&gb) != MKTAG('p','r','r','f')) /* Frame header */
+    if (bytestream2_get_be32(&gb) != MKBETAG('p','r','r','f')) /* Frame header */
         return buf_size;
 
     int header_size = bytestream2_get_be16(&gb);