diff --git a/common/scripted_triggers/mpo_scripted_triggers.txt b/common/scripted_triggers/mpo_scripted_triggers.txt
index 61e5d6e29..7d5ab9952 100644
--- a/common/scripted_triggers/mpo_scripted_triggers.txt
+++ b/common/scripted_triggers/mpo_scripted_triggers.txt
@@ -48,7 +48,7 @@ valid_confederation_member_trigger = {
 			}
 		}
 	}
-	custom_tooltip = { is_confederation_member = no }
+	is_confederation_member = no
 }
 
 confederation_foe_sub_trigger = {