diff --git a/lib_dec/init_dec_fx.c b/lib_dec/init_dec_fx.c
index 11c108380ec274e2d901fddf50bf2890f9a5fef8..7ee1b8c34b76293480a2944f54b3290b5b6c5ac2 100644
--- a/lib_dec/init_dec_fx.c
+++ b/lib_dec/init_dec_fx.c
@@ -1558,6 +1558,8 @@ ivas_error init_decoder_ivas_fx(
         {
             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for hTcxCfg\n" ) );
         }
+        st_fx->hTcxCfg->tcx_mdct_window_length = L_FRAME32k / 2;
+        move16();
     }
     ELSE
     {