diff --git a/libavformat/rpl.c b/libavformat/rpl.c
index 17b45e3a67..6afd373810 100644
--- a/libavformat/rpl.c
+++ b/libavformat/rpl.c
@@ -200,7 +200,7 @@ static int rpl_read_header(AVFormatContext *s)
         ast->codecpar->channels        = read_line_and_int(pb, &error);  // number of audio channels
         error |= read_line(pb, line, sizeof(line));
         ast->codecpar->bits_per_coded_sample = read_int(line, &endptr, &error);  // audio bits per sample
-        strcpy(audio_type, endptr);
+        av_strlcpy(audio_type, endptr, RPL_LINE_LENGTH);
         // At least one sample uses 0 for ADPCM, which is really 4 bits
         // per sample.
         if (ast->codecpar->bits_per_coded_sample == 0)