diff --git a/lib_com/swb_tbe_com_fx.c b/lib_com/swb_tbe_com_fx.c
index 5f391b271fbb9f8669429a69fbf5aa11e0180141..5631dfa9420b19ea52b80aa60b7c4ff74fe2354c 100644
--- a/lib_com/swb_tbe_com_fx.c
+++ b/lib_com/swb_tbe_com_fx.c
@@ -1645,7 +1645,12 @@ void GenShapedWBExcitation_ivas_fx(
         }
     }
 
-    Syn_filt_s( 0, lpc_shb, LPC_SHB_ORDER_WB, exc4kWhtnd, excSHB, L_FRAME16k / 4, state_lpc_syn, 1 );
+    Scale_sig( state_lpc_syn, LPC_SHB_ORDER, -Q2 ); /* Q(Q_bwe_exc) -> Q(Q_bwe_exc - 2) */
+
+    Syn_filt_s( Q2, lpc_shb, LPC_SHB_ORDER_WB, exc4kWhtnd, excSHB, L_FRAME16k / 4, state_lpc_syn, 1 );
+
+    Scale_sig( state_lpc_syn, LPC_SHB_ORDER, Q2 ); /* Q(Q_bwe_exc - 2) -> Q(Q_bwe_exc) */
+    Scale_sig( excSHB, L_FRAME16k / 4, Q2 );       /* Q(Q_bwe_exc - 2) -> Q(Q_bwe_exc) */
 
     return;
 }