From 0bc9f887ec2062f460a06e8da8eace77add8c5ca Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Sun, 31 Oct 2021 19:46:37 -0400
Subject: [PATCH] fix index error

---
 src/domain.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/domain.cpp b/src/domain.cpp
index 34baccdab6..22c38c977a 100644
--- a/src/domain.cpp
+++ b/src/domain.cpp
@@ -1742,7 +1742,7 @@ void Domain::add_region(int narg, char **arg)
   if (narg < 2) error->all(FLERR,"Illegal region command");
 
   if (strcmp(arg[1],"delete") == 0) {
-    delete_region(arg[2]);
+    delete_region(arg[0]);
     return;
   }