diff --git a/src/main/c/Stefan/blackjack.c b/src/main/c/Stefan/blackjack.c
index deadcdf..e7db0af 100644
--- a/src/main/c/Stefan/blackjack.c
+++ b/src/main/c/Stefan/blackjack.c
@@ -89,13 +89,15 @@ int playBJ(int bet, int balance){
     int winnings = 0;
     int userCardsTotal = 0, dealerCardsTotal = 0;
 
-    int *dealerCardsArray = (int*) malloc(10 * sizeof(int));
+    // Array mit max 10 Karten anlegen
+    int *dealerCardsArray = (int*) malloc(MAX_CARDS * sizeof(int));
 
     if(dealerCardsArray){
         dealerCardsArray[0] = getRandCard(0);
         printf("computer rand card: %d\n", dealerCardsArray[0]);
 
-        int *userCardsArray = (int*) malloc(10 * sizeof(int));
+        // Array mit max 10 Karten anlegen
+        int *userCardsArray = (int*) malloc(MAX_CARDS * sizeof(int));
 
         if(userCardsArray){
 
@@ -111,7 +113,7 @@ int playBJ(int bet, int balance){
 
 
 
-            for(int i = 2; i < 10; i++){
+            for(int i = 2; i < MAX_CARDS; i++){
 
                 userCardsTotal = calculateCardsTotal(userCardsArray, i);
 
@@ -134,7 +136,7 @@ int playBJ(int bet, int balance){
 
             }
 
-            for(int i = 1; i < 10; i++){
+            for(int i = 1; i < MAX_CARDS; i++){
 
                 dealerCardsTotal = calculateCardsTotal(dealerCardsArray, i);
 
diff --git a/src/main/c/Stefan/blackjack.h b/src/main/c/Stefan/blackjack.h
index f20062f..c55c744 100644
--- a/src/main/c/Stefan/blackjack.h
+++ b/src/main/c/Stefan/blackjack.h
@@ -4,6 +4,7 @@
 #include <stdbool.h>
 
 #define ANZ_MOEGLICHE_KARTEN 13
+#define MAX_CARDS 10
 
 int blackjack();
 void welcomeMessageBJ();