use FiberError in vm.c

1 files changed, 1 insertions, 1 deletions

diff --git a/src/vm.c b/src/vm.c
index ffdbb6182..8504cc34c 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1424,7 +1424,7 @@ RETRY_TRY_BLOCK:
               goto L_RAISE;
             }
             if (mrb->c->prev->ci == mrb->c->prev->cibase) {
-              mrb_value exc = mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "double resume");
+              mrb_value exc = mrb_exc_new_str_lit(mrb, E_FIBER_ERROR, "double resume");
               mrb->exc = mrb_obj_ptr(exc);
               goto L_RAISE;
             }