diff --git a/pysipp/__init__.py b/pysipp/__init__.py
index 3e68a6b..46eb248 100644
--- a/pysipp/__init__.py
+++ b/pysipp/__init__.py
@@ -109,10 +109,10 @@ def scenario(dirpath=None, proxyaddr=None, autolocalsocks=True,
                 scenkwargs=scenkwargs
             )
 
-            if proxyaddr:
-                assert isinstance(
-                    proxyaddr, tuple), 'proxyaddr must be a (addr, port) tuple'
-                scen.clientdefaults.proxyaddr = proxyaddr
+    if proxyaddr:
+        assert isinstance(
+            proxyaddr, tuple), 'proxyaddr must be a (addr, port) tuple'
+        scen.clientdefaults.proxyaddr = proxyaddr
 
     return scen
 
diff --git a/pysipp/agent.py b/pysipp/agent.py
index a57a312..2947755 100644
--- a/pysipp/agent.py
+++ b/pysipp/agent.py
@@ -362,10 +362,10 @@ def merge(dicts):
         # apply defaults
         ordered = [self._defaults, secondary, agent.todict()]
         for name, defs in zip(['defaults', dname, 'agent.todict()'], ordered):
-            log.debug("'{}' contents:\n{}".format(name, defs))
+            log.debug("{} '{}' contents:\n{}".format(agent.name, name, defs))
 
         params = merge(ordered)
-        log.debug("merged contents:\n{}".format(params))
+        log.debug("{} merged contents:\n{}".format(agent.name, params))
         ua = UserAgent(defaults=params)
 
         ua.enable_logging(enable_screen_file=self.enable_screen_file)
diff --git a/setup.py b/setup.py
index 80128cd..a13dc99 100755
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@
     url='https://github.com/SIPp/pysipp',
     platforms=['linux'],
     packages=['pysipp', 'pysipp.cli'],
-    install_requires=['pluggy==0.3.1'],
+    install_requires=['pluggy==0.11.0'],
     tests_require=['pytest'],
     entry_points={
         'console_scripts': [
diff --git a/tests/test_stack.py b/tests/test_stack.py
index 346df9c..3aa9b82 100644
--- a/tests/test_stack.py
+++ b/tests/test_stack.py
@@ -52,6 +52,25 @@ def test_confpy_hooks(scendir):
         assert agent.uri_username == 'doggy'
 
 
+def test_proxyaddr_with_scendir(scendir):
+    """When building a scenario from a xml file directory the
+    `proxyaddr` kwarg should be assigned.
+    """
+    remoteaddr = ('9.9.9.9', 80)
+    scen = pysipp.scenario(
+        dirpath=scendir + '/default_with_confpy',
+        proxyaddr=remoteaddr
+    )
+
+    assert scen.clientdefaults.proxyaddr == remoteaddr
+    for name, cmd in scen.cmditems():
+        if name == 'uac':
+            assert "-rsa '{}':'{}'".format(*remoteaddr) in cmd
+            assert "'{}':'{}'".format(*scen.clientdefaults.destaddr) in cmd
+        elif name == 'uas':
+            assert "-rsa '{}':'{}'".format(*remoteaddr) not in cmd
+
+
 def test_sync_run(scenwalk):
     """Ensure all scenarios in the test run to completion in synchronous mode
     """