diff --git a/source/argparse.d b/source/argparse.d
index 0f35999..03438b8 100644
--- a/source/argparse.d
+++ b/source/argparse.d
@@ -3350,7 +3350,7 @@ private struct CommandInfo
 
 auto Command(string[] name...)
 {
-    return CommandInfo(name);
+    return CommandInfo(name.dup);
 }
 
 unittest