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-rw-r--r--sphinx/environment.py4
1 files changed, 1 insertions, 3 deletions
diff --git a/sphinx/environment.py b/sphinx/environment.py
index 8b3bca4a8..f1adf6ea6 100644
--- a/sphinx/environment.py
+++ b/sphinx/environment.py
@@ -397,9 +397,7 @@ class BuildEnvironment:
for key, descr in config.config_values.iteritems():
if not descr[1]:
continue
- if not hasattr(self.config, key) or \
- self.config[key] != config[key]:
-
+ if self.config[key] != config[key]:
msg = '[config changed] '
config_changed = True
break