diff --git a/Directory.Build.props b/Directory.Build.props
index 23e14271..e7fdc835 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -20,7 +20,7 @@
     <LangVersion>preview</LangVersion>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
     <NeutralLanguage>en-US</NeutralLanguage>
-    <NoWarn>$(NoWarn);CA1515;CS1591</NoWarn>
+    <NoWarn>$(NoWarn);CS1591</NoWarn>
     <Nullable>enable</Nullable>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/martincostello/project-euler</PackageProjectUrl>
diff --git a/ProjectEuler.ruleset b/ProjectEuler.ruleset
index 22344449..1f8e0de3 100644
--- a/ProjectEuler.ruleset
+++ b/ProjectEuler.ruleset
@@ -8,6 +8,7 @@
     <Rule Id="CA1056" Action="None" />
     <Rule Id="CA1062" Action="None" />
     <Rule Id="CA1303" Action="None" />
+    <Rule Id="CA1515" Action="None" />
     <Rule Id="CA1812" Action="None" />
     <Rule Id="CA1819" Action="None" />
     <Rule Id="CA2007" Action="None" />