diff --git a/src/timequiz.c b/src/timequiz.c
index b7c29e9..5a78f6d 100644
--- a/src/timequiz.c
+++ b/src/timequiz.c
@@ -191,4 +191,5 @@ void processUserAnswer(int userAnswer, int correctIndex, int* score, int* totalC
 }
 
 int isValidAnswer(int userAnswer) {
+    return (userAnswer >= 1 && userAnswer <= 4);
 }