diff --git a/IPython/html/services/clusters/clustermanager.py b/IPython/html/services/clusters/clustermanager.py
index c0a8776..6b82db6 100644
--- a/IPython/html/services/clusters/clustermanager.py
+++ b/IPython/html/services/clusters/clustermanager.py
@@ -71,7 +71,7 @@ class ClusterManager(LoggingConfigurable):
for profile in stale:
# remove profiles that no longer exist
self.log.debug("Profile '%s' no longer exists", profile)
- self.profiles.pop(stale)
+ self.profiles.pop(profile)
def list_profiles(self):
self.update_profiles()