diff --git a/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml b/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
index 5bbe6174..93277c96 100644
--- a/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
+++ b/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
@@ -503,7 +503,7 @@
on t1.n = t2.hours