diff --git a/src/main/resources/mapper/tms/ExperimentalTeachingDao.xml b/src/main/resources/mapper/tms/ExperimentalTeachingDao.xml
index 9add2b8..3891647 100644
--- a/src/main/resources/mapper/tms/ExperimentalTeachingDao.xml
+++ b/src/main/resources/mapper/tms/ExperimentalTeachingDao.xml
@@ -31,7 +31,9 @@
         <if test="exp.status!=null">
             AND `status`=#{exp.status,jdbcType=INTEGER}
         </if>
-
+        <if test="exp.systemId!=null">
+            AND `system_id`=#{exp.systemId,jdbcType=INTEGER}
+        </if>
         <if test='exp.startTime!=null and exp.stopTime!=null'>
             AND creation_time between #{exp.startTime} and #{exp.stopTime}
         </if>