diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 1b90088605..d21d9332cf 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -4961,6 +4961,7 @@ static SSDataBlock* buildSysDbTableCount(SOperatorInfo* pOperator, STableCountSc
 
   size_t infodbTableNum;
   getInfosDbMeta(NULL, &infodbTableNum);
+  infodbTableNum -= 1;
   size_t perfdbTableNum;
   getPerfDbMeta(NULL, &perfdbTableNum);
 
diff --git a/tests/system-test/0-others/information_schema.py b/tests/system-test/0-others/information_schema.py
index 7a0d1b048a..d5754b1063 100644
--- a/tests/system-test/0-others/information_schema.py
+++ b/tests/system-test/0-others/information_schema.py
@@ -222,7 +222,7 @@ class TDTestCase:
 
         tdSql.query("select * from information_schema.ins_columns where db_name ='information_schema'")
         tdLog.info(len(tdSql.queryResult))
-        tdSql.checkEqual(True, len(tdSql.queryResult) in range(261, 262))
+        tdSql.checkEqual(True, len(tdSql.queryResult) in range(261, 269))
 
         tdSql.query("select * from information_schema.ins_columns where db_name ='performance_schema'")
         tdSql.checkEqual(54, len(tdSql.queryResult))