diff --git a/du3/program.c b/du3/program.c
index a107eda..dd930f2 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -22,6 +22,9 @@ int main(){
 	while(stop == 0){
 		r = fgets(riadok,LINE_SIZE,stdin);
 		pos++;
+		if(feof(stdin)){
+			break;
+		}
 		if (r == NULL || !isdigit(*r) || *r == EOF || feof(stdin)) {
             		//printf("%d", *r);
 			if(*r == 10){