diff --git a/src/NzbDrone.Core.Test/UpdateTests/UpdateServiceFixture.cs b/src/NzbDrone.Core.Test/UpdateTests/UpdateServiceFixture.cs
index e2a49b318..271a6c453 100644
--- a/src/NzbDrone.Core.Test/UpdateTests/UpdateServiceFixture.cs
+++ b/src/NzbDrone.Core.Test/UpdateTests/UpdateServiceFixture.cs
@@ -90,17 +90,6 @@ private void GivenInstallScript(string path)
                   .Returns(true);
         }
 
-        [Test]
-        public void should_not_update_if_inside_docker()
-        {
-            Mocker.GetMock<IOsInfo>().Setup(x => x.IsDocker).Returns(true);
-
-            Subject.Execute(new ApplicationUpdateCommand());
-
-            Mocker.GetMock<IProcessProvider>()
-                .Verify(c => c.Start(It.IsAny<string>(), It.Is<string>(s => s.StartsWith("12")), null, null, null), Times.Never());
-        }
-
         [Test]
         public void should_delete_sandbox_before_update_if_folder_exists()
         {
@@ -339,6 +328,28 @@ public void should_switch_to_branch_specified_in_updatepackage()
                   .Verify(v => v.SaveConfigDictionary(It.Is<Dictionary<string, object>>(d => d.ContainsKey("Branch") && (string)d["Branch"] == "fake")), Times.Once());
         }
 
+        [Test]
+        public void should_not_update_with_built_in_updater_inside_docker_container()
+        {
+            Mocker.GetMock<IDeploymentInfoProvider>().Setup(x => x.PackageUpdateMechanism).Returns(UpdateMechanism.Docker);
+
+            Subject.Execute(new ApplicationUpdateCommand());
+
+            Mocker.GetMock<IProcessProvider>()
+                .Verify(c => c.Start(It.IsAny<string>(), It.Is<string>(s => s.StartsWith("12")), null, null, null), Times.Never());
+        }
+
+        [Test]
+        public void should_not_update_with_built_in_updater_when_external_updater_is_configured()
+        {
+            Mocker.GetMock<IDeploymentInfoProvider>().Setup(x => x.IsExternalUpdateMechanism).Returns(true);
+
+            Subject.Execute(new ApplicationUpdateCommand());
+
+            Mocker.GetMock<IProcessProvider>()
+                .Verify(c => c.Start(It.IsAny<string>(), It.Is<string>(s => s.StartsWith("12")), null, null, null), Times.Never());
+        }
+
         [TearDown]
         public void TearDown()
         {
diff --git a/src/NzbDrone.Core/Update/InstallUpdateService.cs b/src/NzbDrone.Core/Update/InstallUpdateService.cs
index 249617e66..af1734199 100644
--- a/src/NzbDrone.Core/Update/InstallUpdateService.cs
+++ b/src/NzbDrone.Core/Update/InstallUpdateService.cs
@@ -238,18 +238,18 @@ private UpdatePackage GetUpdatePackage(CommandTrigger updateTrigger)
                 return null;
             }
 
-            if (_osInfo.IsDocker)
-            {
-                _logger.ProgressDebug("Updating is disabled inside a docker container.  Please update the container image.");
-                return null;
-            }
-
             if (OsInfo.IsNotWindows && !_configFileProvider.UpdateAutomatically && updateTrigger != CommandTrigger.Manual)
             {
                 _logger.ProgressDebug("Auto-update not enabled, not installing available update.");
                 return null;
             }
 
+            if (_configFileProvider.UpdateMechanism == UpdateMechanism.BuiltIn && _deploymentInfoProvider.PackageUpdateMechanism == UpdateMechanism.Docker)
+            {
+                _logger.ProgressDebug("Built-In updater disabled inside a docker container. Please update the container image.");
+                return null;
+            }
+
             // Safety net, ConfigureUpdateMechanism should take care of invalid settings
             if (_configFileProvider.UpdateMechanism == UpdateMechanism.BuiltIn && _deploymentInfoProvider.IsExternalUpdateMechanism)
             {