diff --git a/source/src/commands/backupdata.cpp b/source/src/commands/backupdata.cpp
index dadf175..b801dba 100644
--- a/source/src/commands/backupdata.cpp
+++ b/source/src/commands/backupdata.cpp
@@ -33,8 +33,8 @@ struct BackupDataCommandRegister {
             false, // hidden
             true, // requires_config
             true, // requires_install
-            0,     // min_args (after command)
-            1,     // max_args (after command)
+            2,     // min_args (after command)
+            2,     // max_args (after command)
             "backupdata SERVER SERVICE",
             "Backup data for a service on a server.",
             // heredoc