diff --git a/src/Models/ExternalTool.cs b/src/Models/ExternalTool.cs
index f9660e834..04dc2acd4 100644
--- a/src/Models/ExternalTool.cs
+++ b/src/Models/ExternalTool.cs
@@ -63,6 +63,7 @@ public void Launch(string args)
                     FileName = ExecFile,
                     Arguments = args,
                     UseShellExecute = false,
+                    CreateNoWindow = true,
                 });
             }
         }