diff --git a/cv3/program.c b/cv3/program.c
index fc3b8f1..6bb0d5f 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -91,7 +91,7 @@ int read(struct stack *s) {
                     case '/':
                         if (b == 0) {
                             printf("division by zero\n");
-                            return 1;
+                            exit(0);
                         }
                         result = a / b;
                         break;