diff --git a/build/test/out/c/quizduell.o b/build/test/out/c/quizduell.o
index 16b992d..c8c2f5d 100644
Binary files a/build/test/out/c/quizduell.o and b/build/test/out/c/quizduell.o differ
diff --git a/build/test/out/test_quizduell.out b/build/test/out/test_quizduell.out
index 3c22b2e..8d8ff17 100644
Binary files a/build/test/out/test_quizduell.out and b/build/test/out/test_quizduell.out differ
diff --git a/build/test/results/test_casualQuiz.pass b/build/test/results/test_casualQuiz.pass
index fbe722a..d83a877 100644
--- a/build/test/results/test_casualQuiz.pass
+++ b/build/test/results/test_casualQuiz.pass
@@ -11,4 +11,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.020513700001174584
+:time: 0.02078239998081699
diff --git a/build/test/results/test_quizduell.pass b/build/test/results/test_quizduell.pass
index 522f474..317ba20 100644
--- a/build/test/results/test_quizduell.pass
+++ b/build/test/results/test_quizduell.pass
@@ -51,4 +51,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0187185000104364
+:time: 0.021433699992485344
diff --git a/build/test/results/test_timequiz.pass b/build/test/results/test_timequiz.pass
index 283710e..34a121c 100644
--- a/build/test/results/test_timequiz.pass
+++ b/build/test/results/test_timequiz.pass
@@ -11,4 +11,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.01958560000639409
+:time: 0.02030239999294281
diff --git a/build/test/results/test_wwm.pass b/build/test/results/test_wwm.pass
index b1d00a6..f7086df 100644
--- a/build/test/results/test_wwm.pass
+++ b/build/test/results/test_wwm.pass
@@ -11,4 +11,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.019048200018005446
+:time: 0.021443899982841685
diff --git a/src/quizduell.c b/src/quizduell.c
index 2423e44..9cc7029 100644
--- a/src/quizduell.c
+++ b/src/quizduell.c
@@ -4,7 +4,7 @@
 #include <string.h>
 #include <ctype.h>
 
-int pruefeAntwort(QuizFrage frage, char antwort) {
+int pruefeAntwort(const QuizFrage frage, const char antwort) {
     return (frage.korrekteAntwort == antwort);
 }