1 files changed, 1 insertions, 0 deletions
diff --git a/include/mruby.h b/include/mruby.h
index 303b00ccf..b19dd5902 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -70,6 +70,7 @@ typedef struct {
 enum mrb_fiber_state {
   MRB_FIBER_CREATED = 0,
   MRB_FIBER_RUNNING,
+  MRB_FIBER_RESUMING,
   MRB_FIBER_SUSPENDED,
   MRB_FIBER_TERMINATED,
 };