diff --git a/main.cpp b/main.cpp
index 5fa1a0d..a81babd 100644
--- a/main.cpp
+++ b/main.cpp
@@ -87,8 +87,10 @@ int main(int argc, char* argv[]) {
 	for(auto guess : history)
 		cout << format_guess_history(sequence, guess) << std::endl;
 
-	if(history.back() != sequence)
+	if(history.back() != sequence) {
 		cout << format_lost_sequence(sequence) << std::endl;
+		return 1;
+	}
 
 	return 0;
 }