diff --git a/lib_com/options.h b/lib_com/options.h
index faafb029dc7b3a80c4eb6b98a198cdcf3f0e7495..5ca7264c0116cabc90a601b4b857bf17026b7aaa 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -187,7 +187,7 @@
 #define NONBE_FIX_1174_MCMASA_LBR_LOOP_ERROR            /* Nokia: Fix issue 1174 by removing the unnecessary inner loop causing problems. */
 #define NONBE_FIX_1097_SBA_DTX_BRATE_SWITCHING_ENC      /* FhG: fix out-of-bound errors when switching from SID frame to active frame*/
 #define NONBE_FIX_1052_SBA_EXT_FIX                      /* VA: SBA external output support fix - do not overwrite "output_config" parameter */
-
+#define NONBE_1289_STEREO_SW_TO_MONO                    /* VA: issue 1289: Fix glitch when stereo signal is decoded to mono n TD->DFT switching */
 #define NONBE_FIX_1196_TD_HEADTRACKING_INTERPOLATION    /* Ericsson: Issue 1196, Always apply filter interpolation for each subframe */
 #define FIX_1113_CLDFB_REND_IN_ISAR                     /* issue 1113: fix the use of CLDFB renderer in split-rendering at the external renderer */
 #define NONBE_FIX_1110_STEREO_DTX_BRATE_SWITCHING       /* VA: issue 1110: fix encoder crash in the stereo DTX bitrate switching condition */
diff --git a/lib_dec/ivas_stereo_switching_dec.c b/lib_dec/ivas_stereo_switching_dec.c
index 087c54252b119dd1e1701e676683618b4533473d..6eeab0e242270e055d1f3936640403e7cc9bdf3d 100644
--- a/lib_dec/ivas_stereo_switching_dec.c
+++ b/lib_dec/ivas_stereo_switching_dec.c
@@ -1141,7 +1141,11 @@ void synchro_synthesis(
         /* handling of TD->DFT switching */
         for ( n = 0; n < hCPE->nchan_out; n++ )
         {
+#ifdef NONBE_1289_STEREO_SW_TO_MONO
+            if ( ( !use_cldfb_for_last_dft && hCPE->last_element_mode != IVAS_CPE_DFT && !sba_dirac_stereo_flag && dft_mono_brate_switch != -1 ) || dft_mono_brate_switch == 1 )
+#else
             if ( ( hCPE->last_element_mode != IVAS_CPE_DFT && !sba_dirac_stereo_flag && dft_mono_brate_switch != -1 ) || dft_mono_brate_switch == 1 )
+#endif
             {
                 float *pPrev_synth;
                 float inv_fade_len = 1.f / delay_diff;