diff --git a/ILSpy/Languages/Languages.cs b/ILSpy/Languages/Languages.cs
index 2cdac7a7e..5b9e18092 100644
--- a/ILSpy/Languages/Languages.cs
+++ b/ILSpy/Languages/Languages.cs
@@ -41,8 +41,10 @@ namespace ICSharpCode.ILSpy
 			List<Language> languages = new List<Language>();
 			languages.AddRange(composition.GetExportedValues<Language>());
 			languages.Add(new ILLanguage(true));
+			#if DEBUG
 			languages.AddRange(ILAstLanguage.GetDebugLanguages());
 			languages.AddRange(CSharpLanguage.GetDebugLanguages());
+			#endif
 			allLanguages = languages.AsReadOnly();
 		}
 
diff --git a/Mono.Cecil/symbols/pdb/Mono.Cecil.Pdb.csproj b/Mono.Cecil/symbols/pdb/Mono.Cecil.Pdb.csproj
index d0f6fe4ef..2d2dfd273 100644
--- a/Mono.Cecil/symbols/pdb/Mono.Cecil.Pdb.csproj
+++ b/Mono.Cecil/symbols/pdb/Mono.Cecil.Pdb.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">net_4_0_Debug</Configuration>
@@ -13,6 +13,7 @@
     <FileAlignment>512</FileAlignment>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\..\mono.snk</AssemblyOriginatorKeyFile>
+    <NoWarn>0649</NoWarn>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'net_2_0_Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>