diff --git a/unilabos_msgs/action/ResourceCreateFromOuterEasy.action b/unilabos_msgs/action/ResourceCreateFromOuterEasy.action
index 233200c4..cc832a71 100644
--- a/unilabos_msgs/action/ResourceCreateFromOuterEasy.action
+++ b/unilabos_msgs/action/ResourceCreateFromOuterEasy.action
@@ -6,7 +6,7 @@ geometry_msgs/Point bind_locations
 int32[] liquid_input_slot
 string[] liquid_type
 float32[] liquid_volume
-int32[] slot_on_deck
+int32 slot_on_deck
 ---
 bool success
 ---