diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 116392d..44a8648 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -44,7 +44,7 @@
     name: check illegal windows names
     entry: Illegal windows filenames detected
     language: fail
-    files: '(?i)(^|/)(CON|PRN|AUX|NUL|COM[1-9]|LPT[1-9])(\.|/|$)'
+    files: '(?i)((^|/)(CON|PRN|AUX|NUL|COM[1-9]|LPT[1-9])(\.|/|$)|:)'
 -   id: check-json
     name: check json
     description: checks json files for parseable syntax.
diff --git a/tests/check_illegal_windows_names_test.py b/tests/check_illegal_windows_names_test.py
index 4dce4f6..35a5be3 100644
--- a/tests/check_illegal_windows_names_test.py
+++ b/tests/check_illegal_windows_names_test.py
@@ -28,6 +28,8 @@ def hook_re():
         pytest.param('aux', id='without ext'),
         pytest.param('AuX.tXt', id='capitals'),
         pytest.param('com7.dat', id='com with digit'),
+        pytest.param(':', id='bare colon'),
+        pytest.param('file:Zone.Identifier', id='mid colon'),
     ),
 )
 def test_check_illegal_windows_names_matches(hook_re, s):