diff --git a/du3/program.c b/du3/program.c
index 60be17b..07dae63 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -10,7 +10,7 @@ int day=0;
 int m=0;
 int y=0;
 sscanf(str, "%d.%d.%d", &day, &m, &y);
-if(day>28 && m==2 &&(y%400==0 ||(y%100!=0 && y%4==0))){
+if(day>29 && m==2 &&(y%400==0 ||(y%100!=0 && y%4==0))){
     printf("Nespravny datum");
     return 0;
 }