diff --git a/cv9/snake.c b/cv9/snake.c
index 98c45c0..92baaf5 100644
--- a/cv9/snake.c
+++ b/cv9/snake.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 
 struct snake* add_snake(struct snake* snake,int x,int y){
-    struct snake* hlavicka = (struct snake*)malloc(sizeof(struct snake));
+    struct snake* hlavicka = calloc(1,sizeof(struct snake));
     if (hlavicka == NULL) {
         return NULL; 
     }