diff --git a/src/System.Management.Automation/engine/Utils.cs b/src/System.Management.Automation/engine/Utils.cs
index 5885413c7..12f170937 100644
--- a/src/System.Management.Automation/engine/Utils.cs
+++ b/src/System.Management.Automation/engine/Utils.cs
@@ -1258,14 +1258,14 @@ namespace System.Management.Automation
         internal static bool IsReservedDeviceName(string destinationPath)
         {
 #if !UNIX
-            string[] reservedDeviceNames = { "CON", "PRN", "AUX", "CLOCK$", "NUL",
+            string[] reservedDeviceNames = { "CON", "PRN", "AUX", "CLOCK$", "NUL", "CONIN$", "CONOUT$",
                                              "COM0", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
                                              "LPT0", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9" };
             string compareName = Path.GetFileName(destinationPath);
             string noExtensionCompareName = Path.GetFileNameWithoutExtension(destinationPath);
 
-            if (((compareName.Length < 3) || (compareName.Length > 6)) &&
-                ((noExtensionCompareName.Length < 3) || (noExtensionCompareName.Length > 6)))
+            if (((compareName.Length < 3) || (compareName.Length > 7)) &&
+                ((noExtensionCompareName.Length < 3) || (noExtensionCompareName.Length > 7)))
             {
                 return false;
             }
diff --git a/test/powershell/Modules/Microsoft.PowerShell.Management/FileSystem.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Management/FileSystem.Tests.ps1
index 015ad53cc..0e4adaeec 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Management/FileSystem.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Management/FileSystem.Tests.ps1
@@ -28,6 +28,8 @@ Describe "Basic FileSystem Provider Tests" -Tags "CI" {
                 @{ deviceName = 'AUX' }
                 @{ deviceName = 'CLOCK$' }
                 @{ deviceName = 'NUL' }
+                @{ deviceName = 'CONIN$' }
+                @{ deviceName = 'CONOUT$' }
                 @{ deviceName = 'COM0' }
                 @{ deviceName = 'COM1' }
                 @{ deviceName = 'COM2' }