diff --git a/du1/program.c b/du1/program.c
index 11b53ce..220321b 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -1,7 +1,7 @@
 #include <stdio.h>
 
 int main(){
-double x, a, b, c, y;
+double x = 0, a = 0, b = 0, c = 0, y;
 if (scanf("%lf", &x) != 1 && x != 0){
     printf("Nepodarilo sa načítať x");
     return 0;