diff --git a/ipaserver/install/dogtaginstance.py b/ipaserver/install/dogtaginstance.py
index cc75d8974..5dca721d6 100644
--- a/ipaserver/install/dogtaginstance.py
+++ b/ipaserver/install/dogtaginstance.py
@@ -853,7 +853,7 @@ class PKIIniLoader:
         if errs:
             raise ValueError(
                 '{} overrides immutable options:\n{}'.format(
-                    filename, '\n'.join(errors)
+                    filename, '\n'.join(errs)
                 )
             )