diff --git a/libavformat/wtvdec.c b/libavformat/wtvdec.c
index bd32d70dcf..3ac4501306 100644
--- a/libavformat/wtvdec.c
+++ b/libavformat/wtvdec.c
@@ -1031,7 +1031,7 @@ static int read_header(AVFormatContext *s)
                     while (1) {
                         uint64_t frame_nb = avio_rl64(pb);
                         uint64_t position = avio_rl64(pb);
-                        while (frame_nb > e->size && e <= e_end) {
+                        while (e <= e_end && frame_nb > e->size) {
                             e->pos = last_position;
                             e++;
                         }