diff --git a/src/System.Management.Automation/namespaces/FileSystemProvider.cs b/src/System.Management.Automation/namespaces/FileSystemProvider.cs
index eab04cb6e40..c1a539fb3ac 100644
--- a/src/System.Management.Automation/namespaces/FileSystemProvider.cs
+++ b/src/System.Management.Automation/namespaces/FileSystemProvider.cs
@@ -7617,7 +7617,9 @@ public Encoding Encoding
 
             set
             {
+#pragma warning disable 612, 618
                 if (value == System.Text.Encoding.UTF7)
+#pragma warning restore 612, 618
                 {
                     _provider.WriteWarning(PathUtilsStrings.Utf7EncodingObsolete);
                 }
diff --git a/src/System.Management.Automation/utils/EncodingUtils.cs b/src/System.Management.Automation/utils/EncodingUtils.cs
index 6825a259dae..abbe4a569f6 100644
--- a/src/System.Management.Automation/utils/EncodingUtils.cs
+++ b/src/System.Management.Automation/utils/EncodingUtils.cs
@@ -95,7 +95,9 @@ internal static Encoding Convert(Cmdlet cmdlet, string encoding)
         /// <param name="encoding">The encoding to check for obsolescence.</param>
         internal static void WarnIfObsolete(Cmdlet cmdlet, Encoding encoding)
         {
+#pragma warning disable 612, 618
             if (encoding == System.Text.Encoding.UTF7)
+#pragma warning restore 612, 618
             {
                 cmdlet.WriteWarning(PathUtilsStrings.Utf7EncodingObsolete);
             }