diff --git a/lib_dec/ivas_ism_param_dec_fx.c b/lib_dec/ivas_ism_param_dec_fx.c
index f3e37c5c0299c91bd9074f9dce5e1c8ca58ba3d0..c8f6694e7bba722f48298bdc909703120aa9d551 100644
--- a/lib_dec/ivas_ism_param_dec_fx.c
+++ b/lib_dec/ivas_ism_param_dec_fx.c
@@ -1339,14 +1339,14 @@ void ivas_ism_param_dec_tc_gain_ajust_fx(
         {
             gain_fx = 0;
             move16();
-            tmp_e1 = 31;
+            tmp_e1 = 0;
             move16();
         }
-        ELSE
-        { /*handling denominator equals to zero*/
-            gain_fx = 1;
+        ELSE /*handling denominator equals to zero*/
+        {
+            gain_fx = 32767; //(max value of Word16 in Q0)
             move16();
-            tmp_e1 = -32767; //(-1.0f in Q15) + 1
+            tmp_e1 = 15;
             move16();
         }
     }