diff --git a/lib_enc/ivas_masa_enc.c b/lib_enc/ivas_masa_enc.c
index 543897b8542fc9365bc5a48b127ea9427ef03c4d..42abcf9f4448fc2397a1f75da47f1a4d09818fcd 100644
--- a/lib_enc/ivas_masa_enc.c
+++ b/lib_enc/ivas_masa_enc.c
@@ -2364,7 +2364,16 @@ static void reduce_metadata_further_fx(
         }
     }
 
-    tmp2 = W_norm( W_tmp );
+    IF( W_tmp != 0 )
+    {
+        tmp2 = sub( W_norm( W_tmp ), 1 ); // Usage of guard bits to avoid the large values of onset_detector in multiplication
+    }
+    ELSE
+    {
+        tmp2 = 0;
+        move16();
+    }
+
     tmp2 = s_min( 32, tmp2 );
     totalEnergySum = W_extract_h( W_shl( W_tmp, tmp2 ) );
     tmp2 = sub( tmp2, 32 );