diff --git a/lib_com/basop_util.c b/lib_com/basop_util.c
index dc9013a4212d58acf4c85976df57130fd0389c01..e52f404f6f83b00535931530c021d8e381dd072f 100644
--- a/lib_com/basop_util.c
+++ b/lib_com/basop_util.c
@@ -2640,10 +2640,16 @@ Word32 BASOP_Util_Add_Mant32Exp /* o  : normalized result mantissa */
     */
 
     if ( !a_m )
-        a_e = add( b_e, 0 );
+    {
+        a_e = b_e;
+        move16();
+    }
 
     if ( !b_m )
-        b_e = add( a_e, 0 );
+    {
+        b_e = a_e;
+        move16();
+    }
 
     shift = sub( a_e, b_e );
     shift = s_max( -31, shift );
@@ -2664,7 +2670,10 @@ Word32 BASOP_Util_Add_Mant32Exp /* o  : normalized result mantissa */
     if ( shift )
         L_tmp = L_shl( L_tmp, shift );
     if ( L_tmp == 0 )
-        a_e = add( 0, 0 );
+    {
+        a_e = 0;
+        move16();
+    }
     if ( L_tmp != 0 )
         a_e = sub( a_e, shift );
     *ptr_e = a_e;