diff --git a/app/views/exercise/_edit_shixun.html.erb b/app/views/exercise/_edit_shixun.html.erb
index f847d3fc..6a84fe17 100644
--- a/app/views/exercise/_edit_shixun.html.erb
+++ b/app/views/exercise/_edit_shixun.html.erb
@@ -181,6 +181,13 @@
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