diff --git a/docs/kittens/hyperlinked_grep.rst b/docs/kittens/hyperlinked_grep.rst
index dd7428608..8576b6199 100644
--- a/docs/kittens/hyperlinked_grep.rst
+++ b/docs/kittens/hyperlinked_grep.rst
@@ -14,13 +14,12 @@ following contents:
     # Open any file with a fragment in vim, fragments are generated
     # by the hyperlink_grep kitten and nothing else so far.
     protocol file
-    has_fragment yes
+    fragment_matches [0-9]+
     action launch --type=overlay vim +${FRAGMENT} ${FILE_PATH}
 
     # Open text files without fragments in the editor
     protocol file
     mime text/*
-    has_fragment no
     action launch --type=overlay ${EDITOR} ${FILE_PATH}
 
 
diff --git a/docs/open_actions.rst b/docs/open_actions.rst
index e79ecfcb4..2479598af 100644
--- a/docs/open_actions.rst
+++ b/docs/open_actions.rst
@@ -75,8 +75,9 @@ lines. The various available criteria are:
 ``url``
     A regular expression that must match against the entire (unquoted) URL
 
-``has_fragment``
-    A boolean (``yes/no``) on whether the URL has a fragment or not.
+``fragment_matches``
+    A regular expression that must match against the fragment (part after #) in
+    the URL
 
 ``mime``
     A comma separated list of MIME types, for example: ``text/*, image/*,
diff --git a/kitty/open_actions.py b/kitty/open_actions.py
index 21e2afc09..5dea14bcf 100644
--- a/kitty/open_actions.py
+++ b/kitty/open_actions.py
@@ -12,7 +12,7 @@ from typing import (
 )
 from urllib.parse import ParseResult, unquote, urlparse
 
-from .conf.utils import to_bool, to_cmdline
+from .conf.utils import to_cmdline
 from .config import KeyAction, parse_key_action
 from .constants import config_dir
 from .typing import MatchType
@@ -53,7 +53,7 @@ def parse(lines: Iterable[str]) -> Generator[OpenAction, None, None]:
                 x = parse_key_action(rest)
             if x is not None:
                 actions.append(x)
-        elif key in ('mime', 'ext', 'protocol', 'file', 'path', 'url', 'has_fragment'):
+        elif key in ('mime', 'ext', 'protocol', 'file', 'path', 'url', 'fragment_matches'):
             if key != 'url':
                 rest = rest.lower()
             match_criteria.append(MatchCriteria(cast(MatchType, key), rest))
@@ -107,8 +107,14 @@ def url_matches_criterion(purl: 'ParseResult', url: str, unquoted_path: str, mc:
                 return True
         return False
 
-    if mc.type == 'has_fragment':
-        return to_bool(mc.value) == bool(purl.fragment)
+    if mc.type == 'fragment_matches':
+        import re
+        try:
+            pat = re.compile(mc.value)
+        except re.error:
+            return False
+
+        return pat.search(unquote(purl.fragment)) is not None
 
     if mc.type == 'path':
         import fnmatch
diff --git a/kitty/typing.pyi b/kitty/typing.pyi
index b2133a16f..7417e6f48 100644
--- a/kitty/typing.pyi
+++ b/kitty/typing.pyi
@@ -43,7 +43,7 @@ from .config import (  # noqa; noqa
 )
 
 EdgeLiteral = Literal['left', 'top', 'right', 'bottom']
-MatchType = Literal['mime', 'ext', 'protocol', 'file', 'path', 'url', 'has_fragment']
+MatchType = Literal['mime', 'ext', 'protocol', 'file', 'path', 'url', 'fragment_matches']
 GRT_a = Literal['t', 'T', 'q', 'p', 'd']
 GRT_f = Literal[24, 32, 100]
 GRT_t = Literal['d', 'f', 't', 's']
diff --git a/kitty_tests/open_actions.py b/kitty_tests/open_actions.py
index 234155fce..cb8b5aa17 100644
--- a/kitty_tests/open_actions.py
+++ b/kitty_tests/open_actions.py
@@ -29,7 +29,7 @@ class TestOpenActions(BaseTest):
         spec = '''
 protocol file
 mime text/*
-has_fragment yes
+fragment_matches .
 AcTion launch $EDITOR $FILE_PATH $FRAGMENT
 action