diff --git a/OpenTelemetry.sln b/OpenTelemetry.sln
index 4863f2a12e1..b941bc96ac5 100644
--- a/OpenTelemetry.sln
+++ b/OpenTelemetry.sln
@@ -306,7 +306,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Shims", "Shims", "{A0CB9A10
 	ProjectSection(SolutionItems) = preProject
 		src\Shared\Shims\IsExternalInit.cs = src\Shared\Shims\IsExternalInit.cs
 		src\Shared\Shims\NullableAttributes.cs = src\Shared\Shims\NullableAttributes.cs
-		src\Shared\Shims\UnconditionalSuppressMessageAttribute.cs = src\Shared\Shims\UnconditionalSuppressMessageAttribute.cs
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Api.Tests", "test\OpenTelemetry.Api.Tests\OpenTelemetry.Api.Tests.csproj", "{777C04B8-1BD5-43D7-B3CD-D2189DFABCF3}"