diff --git a/Libraries/Amazon.Lambda.Annotations.slnf b/Libraries/Amazon.Lambda.Annotations.slnf
index 94441257b..48c0cd6e0 100644
--- a/Libraries/Amazon.Lambda.Annotations.slnf
+++ b/Libraries/Amazon.Lambda.Annotations.slnf
@@ -5,6 +5,7 @@
       "src\\Amazon.Lambda.Annotations.SourceGenerator\\Amazon.Lambda.Annotations.SourceGenerator.csproj",
       "src\\Amazon.Lambda.Annotations\\Amazon.Lambda.Annotations.csproj",
       "src\\Amazon.Lambda.APIGatewayEvents\\Amazon.Lambda.APIGatewayEvents.csproj",
+      "src\\Amazon.Lambda.RuntimeSupport\\Amazon.Lambda.RuntimeSupport.csproj",
       "src\\Amazon.Lambda.Core\\Amazon.Lambda.Core.csproj",
       "src\\Amazon.Lambda.Serialization.SystemTextJson\\Amazon.Lambda.Serialization.SystemTextJson.csproj",
       "test\\Amazon.Lambda.Annotations.SourceGenerators.Tests\\Amazon.Lambda.Annotations.SourceGenerators.Tests.csproj",