diff --git a/du1/program.c b/du1/program.c
index 9a9e861..1cf6f27 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -20,7 +20,7 @@ if(fgets(line, sizeof(line), stdin) == NULL) {
 if (sscanf(line, "%lf", &x) != 1) {
 
   printf("Nepodarilo sa nacitat zaklad x\n");
-  return 1;
+  return 0;
 
 }
 while (fgets(line, sizeof(line), stdin) != NULL)