diff --git a/tests/system-test/2-query/primary_ts_base_1.py b/tests/system-test/2-query/primary_ts_base_1.py
index 05e42155cf..739afcb1ab 100644
--- a/tests/system-test/2-query/primary_ts_base_1.py
+++ b/tests/system-test/2-query/primary_ts_base_1.py
@@ -27,8 +27,8 @@ class TDTestCase(TDTestCase):
         self.fun_pk_twa(self.database,'derivative',',1s,0') 
         self.fun_pk_twa(self.database,'derivative',',1s,1') 
         self.fun_pk_unique(self.database,'unique','')  
-        # self.fun_pk_last_init(self.database,'last','')  
-        # self.fun_pk_last(self.database,'last','')  
+        self.fun_pk_last_init(self.database,'last','')  
+        self.fun_pk_last(self.database,'last','')  
         # self.fun_pk_last(self.database,'last_row','') 
         # self.fun_pk_first(self.database,'first','')