diff --git a/FSharp.Compiler.Service.sln b/FSharp.Compiler.Service.sln
index ed82699919d..405a3f4a6d4 100644
--- a/FSharp.Compiler.Service.sln
+++ b/FSharp.Compiler.Service.sln
@@ -5,6 +5,8 @@ VisualStudioVersion = 16.0.30503.244
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "FSharp.Compiler.Service", "src\fsharp\FSharp.Compiler.Service\FSharp.Compiler.Service.fsproj", "{A59DB8AE-8044-41A5-848A-800A7FF31C93}"
 EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "FSharp.Compiler.Service.Tests", "tests\FSharp.Compiler.Service.Tests\FSharp.Compiler.Service.Tests.fsproj", "{8D9C9683-5041-48AB-8FA9-0939D2D27D33}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{A59DB8AE-8044-41A5-848A-800A7FF31C93}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A59DB8AE-8044-41A5-848A-800A7FF31C93}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A59DB8AE-8044-41A5-848A-800A7FF31C93}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8D9C9683-5041-48AB-8FA9-0939D2D27D33}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8D9C9683-5041-48AB-8FA9-0939D2D27D33}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8D9C9683-5041-48AB-8FA9-0939D2D27D33}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8D9C9683-5041-48AB-8FA9-0939D2D27D33}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE