diff --git a/core/vm.c b/core/vm.c
index b10c1f31..e93f4574 100644
--- a/core/vm.c
+++ b/core/vm.c
@@ -363,9 +363,8 @@ int gst_continue(Gst *vm) {
                 temp = gst_wrap_thread(vm->thread->parent);
             }
             if (temp.type == GST_THREAD) {
-                if (temp.data.thread->status == GST_THREAD_DEAD ||
-                    temp.data.thread->status == GST_THREAD_ERROR)
-                    gst_error(vm, "cannot enter dead thread");
+                if (temp.data.thread->status != GST_THREAD_PENDING)
+                    gst_error(vm, "can only enter pending thread");
             }
             gst_frame_ret(stack) = pc[1];
             vm->thread->status = GST_THREAD_PENDING;
diff --git a/gsttests/basic.gst b/gsttests/basic.gst
index 3ffcaead..9ee0bb99 100644
--- a/gsttests/basic.gst
+++ b/gsttests/basic.gst
@@ -104,4 +104,5 @@
 
 # report
 
-(print num-tests-passed " of " num-tests-run " tests passed")
\ No newline at end of file
+(print "\n" num-tests-passed " of " num-tests-run " tests passed\n")
+(if (not (= num-tests-passed num-tests-run)) (exit! 1))
\ No newline at end of file