diff --git a/tests/integration_tests.c b/tests/integration_tests.c
index d53d03e..0781ef8 100644
--- a/tests/integration_tests.c
+++ b/tests/integration_tests.c
@@ -40,9 +40,16 @@ static void test_unnested_arithmetic(void)
 	TEST_ASSERT_EQUAL_STRING("64", read_eval_print("(- 100 36)"));
 }
 
+static void test_nested_arithmetic(void)
+{
+	TEST_ASSERT_EQUAL_STRING("20", read_eval_print("(+ 1 (* 2 (+ 3 4)) 5)"));
+	TEST_ASSERT_EQUAL_STRING("-6", read_eval_print("(+ 1 (* 2 2 (- 3)) 5)"));
+}
+
 int main(void)
 {
 	UNITY_BEGIN();
 	RUN_TEST(test_unnested_arithmetic);
+	RUN_TEST(test_nested_arithmetic);
 	return UNITY_END();
 }