diff --git a/classes/deck/nodes/process_node.gd b/classes/deck/nodes/process_node.gd
index 809cd4c..65dcf7c 100644
--- a/classes/deck/nodes/process_node.gd
+++ b/classes/deck/nodes/process_node.gd
@@ -30,7 +30,7 @@ func _event_received(event_name: StringName, event_data: Dictionary = {}) -> voi
 	if event_name != &"process":
 		return
 
-	var run := resolve_input_port_value(0) != null
+	var run = resolve_input_port_value(0) == true
 
 	if !run:
 		return