diff --git a/.rubocop.yml b/.rubocop.yml
index d1caeb9..a6f4c1f 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,3 +3,8 @@ inherit_from: .rubocop_todo.yml
 
 AllCops:
   RunRailsCops: true
+
+# Caveat: .find_by raises exception in mongoid, unlike ActiveRecord which
+# returns nil
+Rails/FindBy:
+  Enabled: false
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 397efba..22e94e8 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2015-10-12 21:40:12 +0200 using RuboCop version 0.34.2.
+# on 2015-10-12 21:40:48 +0200 using RuboCop version 0.34.2.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -19,7 +19,7 @@ Metrics/ClassLength:
 Metrics/CyclomaticComplexity:
   Max: 11
 
-# Offense count: 457
+# Offense count: 458
 # Configuration parameters: AllowURI, URISchemes.
 Metrics/LineLength:
   Max: 239
@@ -33,15 +33,6 @@ Metrics/MethodLength:
 Metrics/PerceivedComplexity:
   Max: 12
 
-# Offense count: 4
-# Cop supports --auto-correct.
-# Configuration parameters: Include.
-Rails/FindBy:
-  Exclude:
-    - 'app/models/app.rb'
-    - 'app/models/error_report.rb'
-    - 'app/models/user.rb'
-
 # Offense count: 16
 # Configuration parameters: Include.
 Rails/Output:
@@ -163,7 +154,7 @@ Style/DeprecatedHashMethods:
 Style/Documentation:
   Enabled: false
 
-# Offense count: 7
+# Offense count: 9
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles.
 Style/DotPosition:
--
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