lib/async/task.rb in async-1.17.1 vs lib/async/task.rb in async-1.18.0

@@ -132,10 +132,10 @@
 		# Soon to become attr :result
 		
 		# Stop the task and all of its children.
 		# @return [void]
 		def stop
-			@children.each(&:stop)
+			@children&.each(&:stop)
 			
 			if @fiber.alive?
 				@fiber.resume(Stop.new)
 			end
 		end