diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 161e9c6e3f..557e5268f2 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -2079,7 +2079,7 @@ static int parse_adts_frame_header(AACContext *ac, GetBitContext *gb)
 
     size = ff_aac_parse_header(gb, &hdr_info);
     if (size > 0) {
-        if (ac->output_configured != OC_LOCKED && hdr_info.chan_config) {
+        if (hdr_info.chan_config) {
             enum ChannelPosition new_che_pos[4][MAX_ELEM_ID];
             memset(new_che_pos, 0, 4 * MAX_ELEM_ID * sizeof(new_che_pos[0][0]));
             ac->m4ac.chan_config = hdr_info.chan_config;