diff --git a/Celeste_Launcher_Gui/Helpers/Steam.cs b/Celeste_Launcher_Gui/Helpers/Steam.cs
index a4b5d3c..b76d1b1 100644
--- a/Celeste_Launcher_Gui/Helpers/Steam.cs
+++ b/Celeste_Launcher_Gui/Helpers/Steam.cs
@@ -7,17 +7,31 @@ public static class Steam
     {
         private const string AOEOnlineExecutableName = "AOEOnline.exe";
         private const string CelesteLauncherExecutableName = "Celeste Launcher.exe";
+        private const string CelesteLauncherExecutableNameCopy = "Celeste Launcher.exe.copy";
 
         public static void ConvertToSteam(string gameBasePath)
         {
             var celesteLauncherExePath = Path.Combine(gameBasePath, CelesteLauncherExecutableName);
+            var celesteLauncherExeCopy = Path.Combine(gameBasePath, CelesteLauncherExecutableNameCopy);
             var aoeoOnlineExePath = Path.Combine(gameBasePath, AOEOnlineExecutableName);
 
-            Misc.MoveFile(celesteLauncherExePath, aoeoOnlineExePath);
+            OverwriteFile(celesteLauncherExePath, celesteLauncherExeCopy);
+            Misc.MoveFile(celesteLauncherExeCopy, aoeoOnlineExePath);
 
             var celesteLauncherExeConfigPath = Path.Combine(gameBasePath, $"{CelesteLauncherExecutableName}.config");
+            var celesteLauncherExeConfigPathCopy = Path.Combine(gameBasePath, $"{CelesteLauncherExecutableNameCopy}.config");
             var aoeoOnlineExeConfigPath = Path.Combine(gameBasePath, $"{AOEOnlineExecutableName}.config");
-            Misc.MoveFile(celesteLauncherExeConfigPath, aoeoOnlineExeConfigPath);
+
+            OverwriteFile(celesteLauncherExeConfigPath, celesteLauncherExeConfigPathCopy);
+            Misc.MoveFile(celesteLauncherExeConfigPathCopy, aoeoOnlineExeConfigPath);
+        }
+
+        private static void OverwriteFile(string source, string target)
+        {
+            if (File.Exists(target))
+                File.Delete(target);
+
+            File.Copy(source, target);
         }
     }
 }
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