diff --git a/CHANGES.rst b/CHANGES.rst
index 05238c72..10897177 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,10 @@
+0.5.2 (??-10-2016)
+------------------
+
+This minor release fixes a bug with the protected resource event. The event should
+give the uri of a concept instead of the url path. In addition to the uri the request
+is added to the event.
+
 0.5.1 (04-10-2016)
 ------------------
 
diff --git a/atramhasis/protected_resources.py b/atramhasis/protected_resources.py
index f6321ef6..12b459d3 100644
--- a/atramhasis/protected_resources.py
+++ b/atramhasis/protected_resources.py
@@ -1,4 +1,7 @@
 # -*- coding: utf-8 -*-
+import re
+from atramhasis.errors import ConceptSchemeNotFoundException
+
 """
 Thid module is used when blocking operations on a certain Concept or Collection
 that might be used in external applications.
@@ -12,8 +15,9 @@ class ProtectedResourceEvent(object):
     Event triggered when calling a protected operation on a resource
     """
 
-    def __init__(self, uri):
+    def __init__(self, uri, request):
         self.uri = uri
+        self.request = request
 
 
 def protected_operation(fn):
@@ -23,8 +27,16 @@ def protected_operation(fn):
     """
 
     def advice(parent_object, *args, **kw):
-        uri = parent_object.request.path_url
-        event = ProtectedResourceEvent(uri)
+        request = parent_object.request
+        url = request.path
+        match = re.compile('/conceptschemes/(\w+)/c/(\w+)').match(url)
+        scheme_id = match.group(1)
+        c_id = match.group(2)
+        provider = request.skos_registry.get_provider(scheme_id)
+        if not provider:
+            raise ConceptSchemeNotFoundException(scheme_id)
+        uri = provider.uri_generator.generate(id=c_id)
+        event = ProtectedResourceEvent(uri, request)
         parent_object.request.registry.notify(event)
         return fn(parent_object, *args, **kw)
 
diff --git a/setup.py b/setup.py
index 24e35a45..135c8634 100644
--- a/setup.py
+++ b/setup.py
@@ -115,7 +115,7 @@ def run(self):
 ]
 
 setup(name='atramhasis',
-      version='0.5.1',
+      version='0.5.2',
       description='A web based editor for thesauri adhering to the SKOS specification.',
       long_description=README + '\n\n' + CHANGES,
       classifiers=[
diff --git a/tests/test_functional.py b/tests/test_functional.py
index 73c5bc8b..44c8a316 100644
--- a/tests/test_functional.py
+++ b/tests/test_functional.py
@@ -196,14 +196,14 @@ def tearDown(self):
 
     @staticmethod
     def mock_event_handler(event):
-        if event.uri == 'http://localhost/conceptschemes/GEOGRAPHY/c/9':
+        if event.uri == 'urn:x-vioe:geography:9':
             referenced_in = ['urn:someobject', 'http://test.test.org/object/2']
             raise ProtectedResourceException('resource {0} is still in use, preventing operation'.format(event.uri),
                                              referenced_in)
 
     @staticmethod
     def mock_event_handler_provider_unavailable(event):
-        if event.uri == 'http://localhost/conceptschemes/GEOGRAPHY/c/55':
+        if event.uri == 'urn:x-vioe:geography:55':
             raise ProviderUnavailableException('test msg')
 
 
@@ -503,7 +503,7 @@ def test_delete_protected_resource(self):
         self.assertIn('application/json', res.headers['Content-Type'])
         self.assertIsNotNone(res.json)
         self.assertEqual(res.json, {
-            "message": "resource http://localhost/conceptschemes/GEOGRAPHY/c/9 is still in use, preventing operation",
+            "message": "resource urn:x-vioe:geography:9 is still in use, preventing operation",
             "referenced_in": ["urn:someobject", "http://test.test.org/object/2"]
         })
 
diff --git a/tests/test_protected_resources.py b/tests/test_protected_resources.py
index ff0ca731..bfacb5cc 100644
--- a/tests/test_protected_resources.py
+++ b/tests/test_protected_resources.py
@@ -5,13 +5,14 @@
     from unittest.mock import Mock, MagicMock
 except ImportError:
     from mock import Mock, MagicMock, call  # pragma: no cover
+from atramhasis.errors import ConceptSchemeNotFoundException
 
 
 class DummyParent(object):
 
     def __init__(self):
         self.request = MagicMock()
-        self.request.path_url = 'http://localhost/conceptschemes/GEOGRAPHY/c/9'
+        self.request.path = '/conceptschemes/GEOGRAPHY/c/9'
 
     @protected_operation
     def protected_dummy(self):
@@ -24,8 +25,9 @@ def setUp(self):
         pass
 
     def test_protected_resource_event(self):
-        event = ProtectedResourceEvent('urn:test')
+        event = ProtectedResourceEvent('urn:test', 'request')
         self.assertEqual('urn:test', event.uri)
+        self.assertEqual('request', event.request)
 
     def test_protected_resource_exception(self):
         referenced_in = ['urn:someobject', 'http://test.test.org/object/2']
@@ -35,8 +37,18 @@ def test_protected_resource_exception(self):
 
     def test_protected_event(self):
         dummy = DummyParent()
+        provider = MagicMock()
+        provider.uri_generator.generate = lambda id: 'urn:x-vioe:geography:9'
+        dummy.request.skos_registry.get_provider = lambda scheme_id: provider
         notify_mock = Mock()
         dummy.request.registry.notify = notify_mock
         dummy.protected_dummy()
         notify_call = notify_mock.mock_calls[0]
-        self.assertEqual('http://localhost/conceptschemes/GEOGRAPHY/c/9', notify_call[1][0].uri)
\ No newline at end of file
+        self.assertEqual('urn:x-vioe:geography:9', notify_call[1][0].uri)
+
+    def test_protected_event_error(self):
+        dummy = DummyParent()
+        dummy.request.skos_registry.get_provider = lambda scheme_id: None
+        notify_mock = Mock()
+        dummy.request.registry.notify = notify_mock
+        self.assertRaises(ConceptSchemeNotFoundException, dummy.protected_dummy)