Fix a silly bug.

1 files changed, 1 insertions, 1 deletions

diff --git a/omptagger b/omptagger
index 8ff72ce..59c4f12 100755
--- a/omptagger
+++ b/omptagger
@@ -140,7 +140,7 @@ class Datum
     Output.action(action.to_s)
 
     begin
-      @metadata.send(*action.arguments.unshift(action.action))
+      @metadata.send(*action.arguments.dup.unshift(action.action))
     rescue MetadataError => message
       Output.info(message.to_s)
     end