diff --git a/du3/program.c b/du3/program.c
index f2f88ef..b43126d 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -49,7 +49,7 @@ int main(){
 
 		if (*endptr == '\0') { // je cislo
 			if(mystack.size >= SIZE) {
-				fprintf(stderr," plne \n");
+				printf("full stack\n");
 				return 1;
 			}	
 		push(&mystack,num);