diff --git a/src/Middleware/Spa/SpaProxy/src/SpaProxyLaunchManager.cs b/src/Middleware/Spa/SpaProxy/src/SpaProxyLaunchManager.cs
index 68b990197bf5..3d4f0c4ecb08 100644
--- a/src/Middleware/Spa/SpaProxy/src/SpaProxyLaunchManager.cs
+++ b/src/Middleware/Spa/SpaProxy/src/SpaProxyLaunchManager.cs
@@ -180,7 +180,11 @@ private void LaunchDevelopmentProxy()
                 // On windows we transform npm/yarn to npm.cmd/yarn.cmd so that the command
                 // can actually be found when we start the process. This is overridable if
                 // necessary by explicitly setting up the extension on the command.
-                command = $"{command}.cmd";
+                if (string.Equals(command, "npm", StringComparison.OrdinalIgnoreCase) ||
+                    string.Equals(command, "yarn", StringComparison.OrdinalIgnoreCase))
+                {
+                    command = $"{command}.cmd";
+                }
             }
 
             var info = new ProcessStartInfo(command, arguments)