diff --git a/applications/utilities/postProcessing/miscellaneous/postChannel/postChannelDict b/applications/utilities/postProcessing/miscellaneous/postChannel/postChannelDict
index 4c528ea243..e69c0386ef 100644
--- a/applications/utilities/postProcessing/miscellaneous/postChannel/postChannelDict
+++ b/applications/utilities/postProcessing/miscellaneous/postChannel/postChannelDict
@@ -22,6 +22,7 @@ Ny
  25 
 ); 
 Nz 30; 
- 
+
+symmetric true;
 
 // ************************************************************************* //