diff --git a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
index 973b7f9efc..3d44d2ea6b 100644
--- a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
+++ b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
@@ -910,6 +910,7 @@
+
diff --git a/OpenRA.Mods.Common/UpdateRules/Rules/RemoveCanUndeployFromGrantConditionOnDeploy.cs b/OpenRA.Mods.Common/UpdateRules/Rules/RemoveCanUndeployFromGrantConditionOnDeploy.cs
new file mode 100644
index 0000000000..dd072785ac
--- /dev/null
+++ b/OpenRA.Mods.Common/UpdateRules/Rules/RemoveCanUndeployFromGrantConditionOnDeploy.cs
@@ -0,0 +1,48 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2018 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+ public class RemoveCanUndeployFromGrantConditionOnDeploy : UpdateRule
+ {
+ public override string Name { get { return "Remove CanUndeploy from GrantConditionOnDeploy."; } }
+ public override string Description
+ {
+ get
+ {
+ return "The CanUndeploy property was removed from the GrantConditionOnDeploy trait.\n" +
+ "Pausing the trait itself achieves the same effect now.";
+ }
+ }
+
+ public override IEnumerable UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+ {
+ foreach (var gcod in actorNode.ChildrenMatching("GrantConditionOnDeploy"))
+ {
+ var canUndeploy = gcod.LastChildMatching("CanUndeploy");
+ if (canUndeploy == null)
+ continue;
+
+ gcod.RemoveNode(canUndeploy);
+
+ if (canUndeploy.NodeValue())
+ continue;
+
+ var deployedCondition = gcod.LastChildMatching("DeployedCondition");
+ gcod.AddNode("PauseOnCondition", deployedCondition.Value.Value);
+ }
+
+ yield break;
+ }
+ }
+}
\ No newline at end of file
diff --git a/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs b/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs
index 1c424f0c48..60dcb3b660 100644
--- a/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs
+++ b/OpenRA.Mods.Common/UpdateRules/UpdatePath.cs
@@ -82,6 +82,7 @@ namespace OpenRA.Mods.Common.UpdateRules
new SplitRepairDecoration(),
new MoveHackyAISupportPowerDecisions(),
new DefineGroundCorpseDefault(),
+ new RemoveCanUndeployFromGrantConditionOnDeploy(),
})
};