diff --git a/keystoneauth1/session.py b/keystoneauth1/session.py
index 4ec5f0cc..29432396 100644
--- a/keystoneauth1/session.py
+++ b/keystoneauth1/session.py
@@ -366,8 +366,15 @@ class Session(object):
                 # stream of bytes and getting an unexpected MemoryError. See
                 # bug 1616105 for further details.
                 content_type = response.headers.get('content-type', None)
-                if content_type in _LOG_CONTENT_TYPES:
-                    text = self._remove_service_catalog(response.text)
+
+                # NOTE(lamt): Per [1], the Content-Type header can be of the
+                # form Content-Type := type "/" subtype *[";" parameter]
+                # [1] https://www.w3.org/Protocols/rfc1341/4_Content-Type.html
+                for log_type in _LOG_CONTENT_TYPES:
+                    if content_type is not None and content_type.startswith(
+                            log_type):
+                        text = self._remove_service_catalog(response.text)
+                        break
                 else:
                     text = ('Omitted, Content-Type is set to %s. Only '
                             '%s responses have their bodies logged.')
diff --git a/keystoneauth1/tests/unit/test_session.py b/keystoneauth1/tests/unit/test_session.py
index b2ed3d74..f3e8ee7c 100644
--- a/keystoneauth1/tests/unit/test_session.py
+++ b/keystoneauth1/tests/unit/test_session.py
@@ -292,6 +292,16 @@ class SessionTests(utils.TestCase):
         self.assertIn(body, self.logger.output)
         self.assertNotIn(OMITTED_BODY % 'application/json', self.logger.output)
 
+        # Content-Type is set to application/json; charset=UTF-8
+        body = json.dumps({'token': {'id': '...'}})
+        self.stub_url(
+            'POST', text=body,
+            headers={'Content-Type': 'application/json; charset=UTF-8'})
+        session.post(self.TEST_URL)
+        self.assertIn(body, self.logger.output)
+        self.assertNotIn(OMITTED_BODY % 'application/json; charset=UTF-8',
+                         self.logger.output)
+
     def test_logging_cacerts(self):
         path_to_certs = '/path/to/certs'
         session = client_session.Session(verify=path_to_certs)