diff --git a/ICSharpCode.Decompiler/Ast/CSharpCodeMapping.cs b/ICSharpCode.Decompiler/Ast/CSharpCodeMapping.cs
index fc90fad73..e006f8fc7 100644
--- a/ICSharpCode.Decompiler/Ast/CSharpCodeMapping.cs
+++ b/ICSharpCode.Decompiler/Ast/CSharpCodeMapping.cs
@@ -12,7 +12,7 @@ namespace ICSharpCode.Decompiler.Ast
 	/// <summary>
 	/// Stores the C# code mappings.
 	/// </summary>
-	public static class CSharpCodeMapping
+	static class CSharpCodeMapping
 	{
 		static ConcurrentDictionary<string, List<MemberMapping>> codeMappings = new ConcurrentDictionary<string, List<MemberMapping>>();
 		
diff --git a/ICSharpCode.Decompiler/Disassembler/ILCodeMapping.cs b/ICSharpCode.Decompiler/Disassembler/ILCodeMapping.cs
index de78bcbb5..5e009bc65 100644
--- a/ICSharpCode.Decompiler/Disassembler/ILCodeMapping.cs
+++ b/ICSharpCode.Decompiler/Disassembler/ILCodeMapping.cs
@@ -10,7 +10,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 	/// <summary>
 	/// Stores the IL code mappings.
 	/// </summary>
-	public static class ILCodeMapping
+	static class ILCodeMapping
 	{
 		static ConcurrentDictionary<string, List<MemberMapping>> codeMappings = new ConcurrentDictionary<string, List<MemberMapping>>();