diff --git a/njvm.c b/njvm.c
index ce5c07b..4d9e0ed 100644
--- a/njvm.c
+++ b/njvm.c
@@ -107,7 +107,7 @@ void execute(struct program program) {
             case RSF:
                 if (debug == 1) printf("rsf\n");
                 if (debug == 1) printf("pop: %i\n", peek(stack, 1));
-                *stack.current = fp - 2;
+                *stack.current = fp + 2;
                 if (debug == 1) printf("pop: %i\n", peek(stack, 1));
                 fp = pop(stack);
                 break;