diff --git a/TLUpdate/Program.cs b/TLUpdate/Program.cs
index bfd406d05..506962b4b 100644
--- a/TLUpdate/Program.cs
+++ b/TLUpdate/Program.cs
@@ -16,15 +16,15 @@ static void Main(string[] _)
 
                 Console.WriteLine("End update");
 
-                if (Tools.IsMono())
+                if (Tools.IsDocker())
                 {
-                    Console.WriteLine("Rebooting ...");
-                    Tools.ExecMono("reboot", "");
+                    Console.WriteLine("Restarting ...");
+                    Environment.Exit(0);
                 }
                 else
                 {
-                    Console.WriteLine("Restarting ...");
-                    Environment.Exit(0);
+                    Console.WriteLine("Rebooting ...");
+                    Tools.ExecMono("reboot", "");
                 }
             }
             catch (Exception ex)
diff --git a/TLUpdate/Tools.cs b/TLUpdate/Tools.cs
index 614d09213..81d4bea48 100644
--- a/TLUpdate/Tools.cs
+++ b/TLUpdate/Tools.cs
@@ -153,6 +153,24 @@ public static string GetMonoRuntimeVersion()
             }
             return "NULL";
         }
+
+        public static bool IsDocker()
+        {
+            try
+            {
+                string filename = "/tmp/teslalogger-DOCKER";
+                if (File.Exists(filename))
+                {
+                    return true;
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("Exception " + ex.Message);
+            }
+
+            return false;
+        }
     }
 }