diff --git a/src/editor.rs b/src/editor.rs
index 1168b52..1727775 100644
--- a/src/editor.rs
+++ b/src/editor.rs
@@ -147,6 +147,9 @@ impl Editor {
 
 	fn step(&mut self) {
 		self.machine.step();
+		if self.complete_popup == Popup::Visible {
+			self.complete_popup = Popup::Dismissed;
+		}
 		if !self.level.outputs().is_empty()
 			&& self.level.outputs() == self.machine.output()
 			&& self.complete_popup == Popup::Start