diff --git a/lib_dec/dec_tcx.c b/lib_dec/dec_tcx.c
index 2934a2309c4c30a601e40b35860553e84188f7a8..8f6ee52fedd4b27dc087b791a7533b3d5b029026 100644
--- a/lib_dec/dec_tcx.c
+++ b/lib_dec/dec_tcx.c
@@ -1559,7 +1559,7 @@ void decoder_tcx_tns(
 #ifndef FIX_I13_TCX_TNS_ISSUE
             tcx5TnsUngrouping( L_frameTCX >> 1, hTcxCfg->tnsConfig[0][0].iFilterBorders[0] >> 1, x, DEC );
 #else
-            if ( st->element_mode == EVS_MONO ) /* TBC: this is temporary to maintain EVS BE, this is a bug and should be fixed also for EVS (see issue 13) */
+            if ( st->element_mode == EVS_MONO || L_spec < L_frameTCX ) /* TBC: this is temporary to maintain EVS BE, this is a bug and should be fixed also for EVS (see issue 13) */
             {
                 tcx5TnsUngrouping( L_frameTCX >> 1, hTcxCfg->tnsConfig[0][0].iFilterBorders[0] >> 1, x, DEC );
             }