diff --git a/lib_com/gs_gains_fx.c b/lib_com/gs_gains_fx.c
index 8b3719e98be7a8f51f368df08ec320079b658160..08c4d9f363af54bd02aab052ce6c70dfb3a4edaf 100644
--- a/lib_com/gs_gains_fx.c
+++ b/lib_com/gs_gains_fx.c
@@ -215,13 +215,13 @@ void Comp_and_apply_gain_ivas_fx(
              * y_gain  = pow(10.0, (Ener_per_bd_iQ[i_band]-Ener_per_bd_yQ[i_band]))
              * = pow(2, 3.321928*(Ener_per_bd_iQ[i_band]-Ener_per_bd_yQ[i_band]))
              *-----------------------------------------------------------------*/
-            L16 = sub( Ener_per_bd_iQ[i_band], Ener_per_bd_yQ[i_band] ); /*Q12 */
-            L32 = L_mult( L16, 27213 );                                  /* 3.321928 in Q13 -> Q26 */
-            L32 = L_shr( L32, 10 );                                      /* From Q26 to Q16 */
-            frac = L_Extract_lc( L32, &exp1 );                           /* Extract exponent of gcode0 */
-            y_gain = extract_l( Pow2( 14, frac ) );                      /* Put 14 as exponent so that */
-                                                                         /* output of Pow2() will be: */
-                                                                         /* 16384 < Pow2() <= 32767 */
+            L16 = sub_sat( Ener_per_bd_iQ[i_band], Ener_per_bd_yQ[i_band] ); /*Q12 */
+            L32 = L_mult( L16, 27213 );                                      /* 3.321928 in Q13 -> Q26 */
+            L32 = L_shr( L32, 10 );                                          /* From Q26 to Q16 */
+            frac = L_Extract_lc( L32, &exp1 );                               /* Extract exponent of gcode0 */
+            y_gain = extract_l( Pow2( 14, frac ) );                          /* Put 14 as exponent so that */
+                                                                             /* output of Pow2() will be: */
+                                                                             /* 16384 < Pow2() <= 32767 */
 #ifdef BASOP_NOGLOB
             Ener_per_bd_yQ[i_band] = shl_o( y_gain, sub( exp1, 13 ), &Overflow ); /*Q13*/
 #else                                                                             /* BASOP_NOGLOB */
diff --git a/lib_com/gs_noisefill_fx.c b/lib_com/gs_noisefill_fx.c
index d0f72936d7f024fa1c31815bff0ea8315a1f0041..9f4ef981040e09c8a55dfe151589fc3e402da036 100644
--- a/lib_com/gs_noisefill_fx.c
+++ b/lib_com/gs_noisefill_fx.c
@@ -1338,9 +1338,9 @@ void highband_exc_dct_in_ivas_fx(
         {
             FOR( i = 0; i < last_bin; i++ )
             {
-                Ener_per_bd_iQ[i] = s_min( Ener_per_bd_iQ[i], sub( add( lt_ener_per_band_fx[i], 1229 ), Ener_per_bd_yQ[i] ) );
+                Ener_per_bd_iQ[i] = s_min( Ener_per_bd_iQ[i], sub_sat( add( lt_ener_per_band_fx[i], 1229 ), Ener_per_bd_yQ[i] ) );
                 move16();
-                lt_ener_per_band_fx[i] = sub( lt_ener_per_band_fx[i], 77 );
+                lt_ener_per_band_fx[i] = sub_sat( lt_ener_per_band_fx[i], 77 );
                 move16();
             }
             FOR( ; i < MBANDS_GN; i++ )