From 580fb11197cb506e21e0c49c3ff288fb86d37311 Mon Sep 17 00:00:00 2001
From: Jesse Boyd <jessepaleg@gmail.com>
Date: Thu, 14 Nov 2019 10:23:02 +0000
Subject: [PATCH] Fix stack arg

---
 .../main/java/com/sk89q/worldedit/command/RegionCommands.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/command/RegionCommands.java b/worldedit-core/src/main/java/com/sk89q/worldedit/command/RegionCommands.java
index c1eb6c799..bb48bc54b 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/command/RegionCommands.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/command/RegionCommands.java
@@ -578,7 +578,7 @@ public class RegionCommands {
                          boolean skipEntities,
                      @Switch(name = 'b', desc = "Also copy biomes")
                          boolean copyBiomes,
-                     @ArgFlag(name = 'm', desc = "Source mask")
+                     @ArgFlag(name = 'm', desc = "Source mask", def="")
                          Mask sourceMask,
                     InjectedValueAccess context) throws WorldEditException {
         actor.checkConfirmationStack(() -> {