diff --git a/lib_enc/swb_pre_proc_fx.c b/lib_enc/swb_pre_proc_fx.c
index 8991696e6be766269eaae27182c04cfd83a42ee0..0e89e16c17a0d96f74bd352d092809a4086d4a7d 100644
--- a/lib_enc/swb_pre_proc_fx.c
+++ b/lib_enc/swb_pre_proc_fx.c
@@ -1068,8 +1068,9 @@ void swb_pre_proc_ivas_fx(
                     {
                         Word16 out_start_ind, out_end_ind;
                         stereo_dft_enc_synthesize_fx( hCPE->hStereoDft, new_swb_speech_fx, &out_start_ind, &out_end_ind, st->idchan, input_Fs, 32000, 0, NULL );
-                        Copy_Scale_sig32_16( new_swb_speech_fx - STEREO_DFT_OVL_MAX, new_swb_speech - STEREO_DFT_OVL_MAX, L_FRAME48k + STEREO_DFT_OVL_MAX, add( q_reImBuffer, 1 ) ); // Q0
-                        Copy( new_swb_speech - Sample_Delay_SWB_BWE32k, hBWE_FD->old_input_fx, Sample_Delay_SWB_BWE32k );                                                            // Q0
+                        Copy_Scale_sig32_16( new_swb_speech_fx - STEREO_DFT_OVL_MAX, new_swb_speech - STEREO_DFT_OVL_MAX, L_FRAME48k + STEREO_DFT_OVL_MAX, add( st->q_inp, add( q_reImBuffer, 1 ) ) ); // st->q_inp
+
+                        Copy( new_swb_speech - Sample_Delay_SWB_BWE32k, hBWE_FD->old_input_fx, Sample_Delay_SWB_BWE32k ); // st->q_inp
                     }
                 }
             }