diff --git a/src/rfc3986/abnf_regexp.py b/src/rfc3986/abnf_regexp.py
index 7220e46..899b7b5 100644
--- a/src/rfc3986/abnf_regexp.py
+++ b/src/rfc3986/abnf_regexp.py
@@ -42,7 +42,7 @@
 _AUTHORITY_RE = "[^\\\\/?#]*"
 _PATH_RE = "[^?#]*"
 _QUERY_RE = "[^#]*"
-_FRAGMENT_RE = ".*"
+_FRAGMENT_RE = "(?s:.*)"
 
 # Extracted from http://tools.ietf.org/html/rfc3986#appendix-B
 COMPONENT_PATTERN_DICT = {
diff --git a/tests/base.py b/tests/base.py
index 03ead71..6e3f7a1 100644
--- a/tests/base.py
+++ b/tests/base.py
@@ -134,6 +134,15 @@ def test_handles_percent_in_fragment(self, uri_fragment_with_percent):
         uri = self.test_class.from_string(uri_fragment_with_percent)
         assert uri.fragment == "perc%25ent"
 
+    def test_handles_line_terminators_in_fragment(
+        self, uri_fragment_with_line_terminators
+    ):
+        """Test that self.test_class encodes line terminators in the fragment properly"""
+        ref = self.test_class.from_string(
+            uri_fragment_with_line_terminators, "utf-8"
+        )
+        assert ref.fragment == "%0Afrag%0Ament%0A"
+
 
 class BaseTestUnsplits:
     test_class = None
diff --git a/tests/conftest.py b/tests/conftest.py
index 62db168..3b2f871 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -146,6 +146,11 @@ def uri_fragment_with_percent(request):
     return "https://%s#perc%%ent" % request.param
 
 
+@pytest.fixture(params=valid_hosts)
+def uri_fragment_with_line_terminators(request):
+    return "https://%s#\nfrag\nment\n" % request.param
+
+
 @pytest.fixture(params=equivalent_schemes)
 def scheme_only(request):
     return "%s:" % request.param