diff --git a/src/Middleware/Rewrite/src/Microsoft.AspNetCore.Rewrite.csproj b/src/Middleware/Rewrite/src/Microsoft.AspNetCore.Rewrite.csproj
index 1f23363732..bf12ad1e76 100644
--- a/src/Middleware/Rewrite/src/Microsoft.AspNetCore.Rewrite.csproj
+++ b/src/Middleware/Rewrite/src/Microsoft.AspNetCore.Rewrite.csproj
@@ -7,7 +7,7 @@
 * Support for running Apache mod_rewrite rules.</Description>
     <TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
     <IsAspNetCoreApp>true</IsAspNetCoreApp>
-    <NoWarn>$(NoWarn);CS1591</NoWarn>
+    <NoWarn>$(NoWarn.Replace('1591', ''))</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;urlrewrite;mod_rewrite</PackageTags>
     <IsPackable>false</IsPackable>