diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08fe7d4..0663442 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ Activate / deactivate all masks using MA layers
 1.3.3
 
 - fixed: problem evaluating broken modifier target
+- added: normalize layer name now convert points to underscore
 
 1.3.2
 
diff --git a/fn.py b/fn.py
index 4278080..e7a42c3 100644
--- a/fn.py
+++ b/fn.py
@@ -980,7 +980,7 @@ def normalize(text):
     return text.lower().replace('-', '_')
 
 PATTERN = r'^(?P<grp>-\s)?(?P<tag>[A-Z]{2}_)?(?P<name>.*?)(?P<sfix>_[A-Z]{2})?(?P<inc>\.\d{3})?$' # numering
-def normalize_layer_name(layer, prefix='', desc='', suffix='', lower=True, dash_to_underscore=True, get_only=False):
+def normalize_layer_name(layer, prefix='', desc='', suffix='', lower=True, dash_to_underscore=True, point_to_underscore=True, get_only=False):
     '''GET a layer and argument to build and assign name'''
     import re
 
@@ -1022,6 +1022,8 @@ def normalize_layer_name(layer, prefix='', desc='', suffix='', lower=True, dash_
         name = name.lower()
     if dash_to_underscore:
         name = name.replace('-', '_')
+    if point_to_underscore:
+        name = name.replace('.', '_')
 
     new = f'{grp}{tag}{name}{sfix}' # lower suffix ?
     if get_only: