diff --git a/Directory.Build.props b/Directory.Build.props
index 128a48a3..0ed4d7f8 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -20,7 +20,7 @@
     <LangVersion>latest</LangVersion>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
     <NeutralLanguage>en-US</NeutralLanguage>
-    <NoWarn>$(NoWarn);CS1591</NoWarn>
+    <NoWarn>$(NoWarn);CA1515;CS1591</NoWarn>
     <Nullable>enable</Nullable>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/martincostello/project-euler</PackageProjectUrl>