Index: Ringtoets.DotSettings
===================================================================
diff -u -re7e22e69b16b23c89c063f18444c82aa818dc176 -rd145afa27d179edd8d89a8dcac5298188a1e4ebd
--- Ringtoets.DotSettings	(.../Ringtoets.DotSettings)	(revision e7e22e69b16b23c89c063f18444c82aa818dc176)
+++ Ringtoets.DotSettings	(.../Ringtoets.DotSettings)	(revision d145afa27d179edd8d89a8dcac5298188a1e4ebd)
@@ -258,6 +258,7 @@
 &lt;/Patterns&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/CSharpMemberOrderPattern/LayoutType/@EntryValue">CustomLayout</s:String>
 	<s:Boolean x:Key="/Default/CodeStyle/IntroduceVariableUseVar/UseVarForIntroduceVariableRefactoring/@EntryValue">True</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=IO/@EntryIndexedValue">IO</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateConstants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateInstanceFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateStaticFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>