1 files changed, 2 insertions, 2 deletions
diff --git a/cont.c b/cont.c
index 85d376653e..2d8b98dbf4 100644
--- a/cont.c
+++ b/cont.c
@@ -1284,7 +1284,7 @@ rb_fiber_start(void)
 	th->root_svar = Qfalse;
 	fib->status = RUNNING;
 
-	EXEC_EVENT_HOOK(th, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, Qnil);
+	EXEC_EVENT_HOOK(th, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, 0, Qnil);
 	cont->value = rb_vm_invoke_proc(th, proc, argc, argv, VM_BLOCK_HANDLER_NONE);
     }
     TH_POP_TAG();
@@ -1474,7 +1474,7 @@ fiber_switch(rb_fiber_t *fib, int argc, const VALUE *argv, int is_resume)
     value = fiber_store(fib, th);
     RUBY_VM_CHECK_INTS(th);
 
-    EXEC_EVENT_HOOK(th, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, Qnil);
+    EXEC_EVENT_HOOK(th, RUBY_EVENT_FIBER_SWITCH, th->self, 0, 0, 0, Qnil);
 
     return value;
 }