diff --git a/OpenTK.sln b/OpenTK.sln
index dc1d2a23..9dadd832 100644
--- a/OpenTK.sln
+++ b/OpenTK.sln
@@ -1,6 +1,8 @@
 
-Microsoft Visual Studio Solution File, Format Version 11.00
-# Visual Studio 2012
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.21005.1
+MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenTK", "Source\OpenTK\OpenTK.csproj", "{A37A7E14-0000-0000-0000-000000000000}"
 	ProjectSection(ProjectDependencies) = postProject
 		{75DC22B1-113F-4A66-96B9-2FF8208C10E8} = {75DC22B1-113F-4A66-96B9-2FF8208C10E8}
@@ -48,6 +50,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Build.Installer.Zip", "Inst
 		{75DC22B1-113F-4A66-96B9-2FF8208C10E8} = {75DC22B1-113F-4A66-96B9-2FF8208C10E8}
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenTK.Rewrite", "Source\OpenTK.Rewrite\OpenTK.Rewrite.csproj", "{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -122,6 +126,13 @@ Global
 		{ADC34399-7613-44D2-90B2-19250F06FE7B}.Nsis|Any CPU.ActiveCfg = Nsis|Any CPU
 		{ADC34399-7613-44D2-90B2-19250F06FE7B}.Nsis|Any CPU.Build.0 = Nsis|Any CPU
 		{ADC34399-7613-44D2-90B2-19250F06FE7B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Documentation|Any CPU.ActiveCfg = Debug|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Nsis|Any CPU.ActiveCfg = Release|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Nsis|Any CPU.Build.0 = Release|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C426C9D1-8857-4E52-BAC7-4C05EE6070AB}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE