diff --git a/lib_dec/dec_tcx_fx.c b/lib_dec/dec_tcx_fx.c
index 00f372154d0b6ad725b3e2c6078d16fa6b9d9e33..19106585519e6e1c9d7f7ab3e826f63f7f023869 100644
--- a/lib_dec/dec_tcx_fx.c
+++ b/lib_dec/dec_tcx_fx.c
@@ -3807,7 +3807,7 @@ void decoder_tcx_invQ_fx(
                 FOR( i = 0; i < noiseFillingSize; ++i )
                 {
                     tmp32 = L_shr( x[i], sub( 31, *x_e ) );
-                    *nf_seed = add_o( *nf_seed, shl( i_mult( (Word16) L_abs( tmp32 ), i ), 1 ), &Overflow ); // abs( tmp32 ) * i * 2
+                    *nf_seed = add_o( *nf_seed, extract_l( L_shl( i_mult( (Word16) L_abs( tmp32 ), i ), 1 ) ), &Overflow ); // abs( tmp32 ) * i * 2
                     move16();
                 }
             }