diff --git a/classes/deck/nodes/general/expression_node.gd b/classes/deck/nodes/general/expression_node.gd
index 9724744..221bf84 100644
--- a/classes/deck/nodes/general/expression_node.gd
+++ b/classes/deck/nodes/general/expression_node.gd
@@ -5,18 +5,17 @@ extends DeckNode
 
 var expr = Expression.new()
 
+
 func _init():
 	name = "Expression"
-	node_type = name.to_snake_case()
+	node_type = "expression"
 	description = "A node returning the result of a mathematical expression."
 
-	props_to_serialize = []
-
 	# TODO: order of ports is changed
 	# due to https://github.com/godotengine/godot/issues/85558
 	# when it's fixed, switch it back
 	add_input_port(
-		DeckType.Types.DICTIONARY,
+		DeckType.Types.ANY,
 		"Expression Input",
 	)
 
@@ -27,30 +26,28 @@ func _init():
 	)
 
 
-func parse(input: Dictionary) -> Variant:
+func parse(input: Variant) -> Variant:
 	var text = get_output_ports()[0].value
 
-	var err = expr.parse(text, ["deck_var", "input"])
+	var err := expr.parse(text, ["deck_var", "input"])
 	if err != OK:
-
 		DeckHolder.logger.log_node("Expression parse failed: %s" % err, Logger.LogType.ERROR)
-		printerr(err)
 		return null
 
 	var res = expr.execute([_belonging_to.variable_stack, input])
 	if expr.has_execute_failed():
-
-		DeckHolder.logger.log_node("Expression Execution Failed: %s" % text, Logger.LogType.ERROR)
+		DeckHolder.logger.log_node("Expression Execution Failed: %s" % expr.get_error_text(), Logger.LogType.ERROR)
 		return null
 
 	return res
 
+
 func _value_request(_from_port : int) -> Variant:
 	var input = await request_value_async(0)
 	if input != null:
 		return parse(input)
 	else:
-		return parse({})
+		return parse(null)
 
 
 func _receive(_on_input_port: int, data: Variant) -> void: