diff --git a/njvm.c b/njvm.c
index 1f81d06..f62342e 100644
--- a/njvm.c
+++ b/njvm.c
@@ -107,6 +107,7 @@ void execute(struct program program) {
             case RSF:
                 if (debug == 1) printf("rsf: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
                 *stack.current = fp;
+                if (debug == 1) printf("pop: %i\n", peek(stack, 1));
                 fp = pop(stack);
                 break;
             case POPL: