diff --git a/lib_enc/ivas_core_pre_proc_fx.c b/lib_enc/ivas_core_pre_proc_fx.c
index ca53a227a23b4bb21e305071f3f6a7a15f4784d3..781d290aca75f4549ce757d98faad2c652464777 100644
--- a/lib_enc/ivas_core_pre_proc_fx.c
+++ b/lib_enc/ivas_core_pre_proc_fx.c
@@ -827,8 +827,8 @@ ivas_error ivas_compute_core_buffers_fx(
             /* no resampling needed, only delay adjustment to account for the FIR resampling delay */
             delay = NS2SA_FX2( input_Fs, DELAY_FIR_RESAMPL_NS );
             move16();
-            Copy( st->mem_decim16k_fx + delay, new_inp_16k_fx - sub( lMemRecalc, add( delay, L_FILT16k ) ), delay );             /* Q(-1) */
-            Copy( signal_in_fx - lMemRecalc, new_inp_16k_fx - add( lMemRecalc, L_FILT16k ), add( input_frame, lMemRecalc ) );    /* st->q_inp */
+            Copy( st->mem_decim16k_fx + delay, new_inp_16k_fx - add( lMemRecalc, sub( delay, L_FILT16k ) ), delay );             /* Q(-1) */
+            Copy( signal_in_fx - lMemRecalc, new_inp_16k_fx - sub( lMemRecalc, L_FILT16k ), add( input_frame, lMemRecalc ) );    /* st->q_inp */
             Copy( signal_in_fx + sub( sub( input_frame, lMemRecalc ), shl( delay, 1 ) ), st->mem_decim16k_fx, shl( delay, 1 ) ); /* st->q_inp */
         }
         ELSE IF( EQ_32( input_Fs, 32000 ) || EQ_32( input_Fs, 48000 ) )