diff --git a/src/ceph_client.py b/src/ceph_client.py
index b9881380..2a122d8d 100644
--- a/src/ceph_client.py
+++ b/src/ceph_client.py
@@ -93,7 +93,7 @@ class CephClientProvides(Object):
         """Retrieve client application name from relation data."""
         return relation.data[unit].get(
             'application-name',
-            relation.app)
+            relation.app.name)
 
     def _handle_client_relation(self, relation, unit):
         """Handle broker request and set the relation data
diff --git a/tox.ini b/tox.ini
index 75e28749..cdfdb44c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,7 +27,7 @@ install_command =
 commands = stestr run --slowest {posargs}
 allowlist_externals =
     charmcraft
-    rename.sh
+    {toxinidir}/rename.sh
 passenv =
     HOME
     TERM