diff --git a/src/test/c/Stefan/test_blackjack.c b/src/test/c/Stefan/test_blackjack.c
index 6a9dcd6..6974abd 100644
--- a/src/test/c/Stefan/test_blackjack.c
+++ b/src/test/c/Stefan/test_blackjack.c
@@ -228,6 +228,20 @@ void test_calculate_if_you_won_20_vs_21() {
 
 }
 
+void test_calculate_if_you_won_21_vs_21() {
+
+    //arrange
+    int userCardsTotal = 21;
+    int dealerCardsTotal = 21;
+
+    //act
+    bool result = calculateIfYouWon(userCardsTotal, dealerCardsTotal);
+
+    //assert
+    TEST_ASSERT_FALSE(result);
+
+}   
+
 void test_generate_char_for_card_2() {
 
     //arrange