diff --git a/src/Microsoft.AspNet.Server.Kestrel/Http/Frame.cs b/src/Microsoft.AspNet.Server.Kestrel/Http/Frame.cs
index 323b791eea..1b418ee8d8 100644
--- a/src/Microsoft.AspNet.Server.Kestrel/Http/Frame.cs
+++ b/src/Microsoft.AspNet.Server.Kestrel/Http/Frame.cs
@@ -660,7 +660,7 @@ namespace Microsoft.AspNet.Server.Kestrel.Http
                    statusCode != 304;
         }
 
-        enum Mode
+        private enum Mode
         {
             StartLine,
             MessageHeader,
diff --git a/tools/Microsoft.StandardsPolice/StandardsPoliceCompileModule.cs b/tools/Microsoft.StandardsPolice/StandardsPoliceCompileModule.cs
index 0961eed061..9be039be75 100644
--- a/tools/Microsoft.StandardsPolice/StandardsPoliceCompileModule.cs
+++ b/tools/Microsoft.StandardsPolice/StandardsPoliceCompileModule.cs
@@ -273,7 +273,7 @@ namespace Microsoft.StandardsPolice
         {
         }
 
-        enum ClassZone
+        private enum ClassZone
         {
             Ignored,
             BeforeStart,