diff --git a/src/test/c/test_hangman_test.c b/src/test/c/test_hangman_test.c
index c8fe86b..a799622 100644
--- a/src/test/c/test_hangman_test.c
+++ b/src/test/c/test_hangman_test.c
@@ -63,14 +63,14 @@ void test_buchstabe_im_zu_erratenden_wort_eingabe_j_in_eoj_richtig() {
 	TEST_ASSERT_EQUAL_INT(expected, actual);
 }
 
-void test_erratene_buchstaben_hinzufuegen_anhaengen_r_an_leerstring_zu_peter_richtig() {
+void test_erratenen_buchstaben_hinzufuegen_anhaengen_r_an_leerstring_zu_peter_richtig() {
     // arrange
 	char expected[100] = "r";
     char actual[100] = "";
 	char to_add = 'r';
 	
     // act
-	erratene_buchstaben_hinzufuegen(actual, to_add);
+	erratenen_buchstaben_hinzufuegen(actual, to_add);
 
     // assert
 	TEST_ASSERT_EQUAL_STRING(expected, actual);