diff --git a/state_machine.gd b/state_machine.gd
index 63f5440..6d82de1 100644
--- a/state_machine.gd
+++ b/state_machine.gd
@@ -94,8 +94,6 @@ func _change_state(name):
 	if index != -1:
 		var old_state = get_current_state()
 		var exit_name = _get_on_state_exit_method_name(old_state)
-		# TODO: do not always call triggers (costly?)
-		trigger_all(exit_name)
 		if parent_node.has_method(exit_name):
 			Callable(parent_node, exit_name).call()
 
@@ -106,7 +104,6 @@ func _change_state(name):
 			print(get_parent().name, "'s new state: ", name)
 
 		var enter_name = _get_on_state_enter_method_name(name)
-		trigger_all(enter_name)
 		if parent_node.has_method(enter_name):
 			Callable(parent_node, enter_name).call()
 
@@ -178,6 +175,3 @@ func add_transition(source, dest, conditions, trigger_name=''):
 func trigger(trigger_name):
 	if not _current_triggers.has(trigger_name):
 		_current_triggers.append(trigger_name)
-
-func trigger_all(trigger_name):
-	get_tree().call_group("state_machine", "trigger", String(get_parent().name) + "_" + trigger_name)