diff --git a/README.md b/README.md
index 69d3476..9667684 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,10 @@ Options:
   -D, --duplicates-destination TEXT
                                   Directory to move duplicates files, relative
                                   to the directory containing the vCards. Default: duplicates
+  -i, --ignore-field TEXT         Fields to ignore when considering duplicate
+                                  contacts. Default: ["prodid", "uid", "version",
+                                  "rev", "x-thunderbird-etag", "x-mozilla-html", "photo",
+                                  "categories"]
   --config FILE                   Read configuration from FILE.
   --help                          Show this message and exit.```
 
diff --git a/find_duplicate_contacts/find_duplicate_contacts.py b/find_duplicate_contacts/find_duplicate_contacts.py
index 695faa3..9376bfb 100755
--- a/find_duplicate_contacts/find_duplicate_contacts.py
+++ b/find_duplicate_contacts/find_duplicate_contacts.py
@@ -37,16 +37,6 @@ class FindDuplicateContacts:
             )
         self._init_log()
 
-        self.ignore_fields = [
-            "prodid",
-            "uid",
-            "version",
-            "rev",
-            "x-thunderbird-etag",
-            "x-mozilla-html",
-            "photo"
-        ]
-
         self.duplicates_folder = os.path.join(
             self.config['directory'],
             self.config['duplicates_destination']
@@ -80,7 +70,7 @@ class FindDuplicateContacts:
                     vcard = vobject.readOne(content)
 
                 for key in vcard.contents.keys():
-                    if key not in self.ignore_fields:
+                    if key not in self.config['ignore_field']:
                         card['content'][key] = list()
                         for item in vcard.contents[key]:
                             card['content'][key].append(item.value)
@@ -242,6 +232,22 @@ class FindDuplicateContacts:
     default='duplicates',
     help='Directory to move duplicates files, relative to the directory containing the vCards.'
 )
+@click.option(
+    '--ignore-field',
+    '-i',
+    multiple=True,
+    default = [
+        "prodid",
+        "uid",
+        "version",
+        "rev",
+        "x-thunderbird-etag",
+        "x-mozilla-html",
+        "photo",
+        "categories"
+    ],
+    help='Fields to ignore when considering duplicate contacts.',
+)
 @click_config_file.configuration_option()
 def __main__(**kwargs):
     return FindDuplicateContacts(**kwargs)
diff --git a/pyproject.toml b/pyproject.toml
index 5b6942d..b101fda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ Homepage = "https://repos.susurrando.com/adelgado/find_duplicate_contacts"
 
 [project]
 name = "find_duplicate_contacts"
-version = "1.0.0"
+version = "1.0.1"
 description = "Find duplicate contacts in vCard files"
 readme = "README.md"
 authors = [{ name = "Antonio J. Delgado", email = "TXj6QGdwejbTD1iWAj2ws9pnV@susurrando.com" }]
diff --git a/setup.cfg b/setup.cfg
index 6a386a8..7744f77 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = find_duplicate_contacts
-version = 1.0.0
+version = 1.0.1
 
 [options]
 packages = find_duplicate_contacts
diff --git a/setup.py b/setup.py
index 3059530..77cb4b7 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ config.read('setup.cfg')
 setuptools.setup(
     scripts=['find_duplicate_contacts/find_duplicate_contacts.py'],
     author="Antonio J. Delgado",
-    version='1.0.0',
+    version='1.0.1',
     name='find_duplicate_contacts',
     author_email="TXj6QGdwejbTD1iWAj2ws9pnV@susurrando.com",
     url="https://susurrando.com",