diff --git a/src/test/c/test_hangman_test.c b/src/test/c/test_hangman_test.c
index b29661a..b84d988 100644
--- a/src/test/c/test_hangman_test.c
+++ b/src/test/c/test_hangman_test.c
@@ -7,7 +7,7 @@ void setUp(void) {}
 
 void tearDown(void) {}
 
-void test_Buchstabe_im_zu_erratenden_wort_eingabe_j_in_leerstring_falsch() {
+void test_buchstabe_im_zu_erratenden_wort_eingabe_j_in_leerstring_falsch() {
     // arrange
 	int expected = 1;
     int actual;
@@ -15,7 +15,7 @@ void test_Buchstabe_im_zu_erratenden_wort_eingabe_j_in_leerstring_falsch() {
 	char secret_word[100] = "";
 	
     // act
-	actual = Buchstabe_im_zu_erratenden_wort(guessed_letter, secret_word);
+	actual = buchstabe_im_zu_erratenden_wort(guessed_letter, secret_word);
 	
     // assert
 	TEST_ASSERT_EQUAL_INT(expected, actual);