diff --git a/common/function-registry/impala_functions.py b/common/function-registry/impala_functions.py
index a498fa60a..094e31b88 100755
--- a/common/function-registry/impala_functions.py
+++ b/common/function-registry/impala_functions.py
@@ -284,9 +284,9 @@ functions = [
       '_ZN6impala18TimestampFunctions10DateAddSubILb0EiN5boost9date_time14years_durationINS2_9gregorian21greg_durations_configEEEEEPvPNS_4ExprEPNS_8TupleRowE'],
   [['years_sub'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
       '_ZN6impala18TimestampFunctions10DateAddSubILb0ElN5boost9date_time14years_durationINS2_9gregorian21greg_durations_configEEEEEPvPNS_4ExprEPNS_8TupleRowE'],
-  [['months_add'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
+  [['months_add', 'add_months'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
       '_ZN6impala18TimestampFunctions10DateAddSubILb1EiN5boost9date_time15months_durationINS2_9gregorian21greg_durations_configEEEEEPvPNS_4ExprEPNS_8TupleRowE'],
-  [['months_add'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
+  [['months_add', 'add_months'], 'TIMESTAMP', ['TIMESTAMP', 'BIGINT'],
       '_ZN6impala18TimestampFunctions10DateAddSubILb1ElN5boost9date_time15months_durationINS2_9gregorian21greg_durations_configEEEEEPvPNS_4ExprEPNS_8TupleRowE'],
   [['months_sub'], 'TIMESTAMP', ['TIMESTAMP', 'INT'],
       '_ZN6impala18TimestampFunctions10DateAddSubILb0EiN5boost9date_time15months_durationINS2_9gregorian21greg_durations_configEEEEEPvPNS_4ExprEPNS_8TupleRowE'],
diff --git a/testdata/workloads/functional-query/queries/QueryTest/exprs.test b/testdata/workloads/functional-query/queries/QueryTest/exprs.test
index aebce34a5..cfc6238da 100644
--- a/testdata/workloads/functional-query/queries/QueryTest/exprs.test
+++ b/testdata/workloads/functional-query/queries/QueryTest/exprs.test
@@ -1,5 +1,13 @@
 ====
 ---- QUERY
+# check that add_months alias is working
+select ADD_MONTHS(cast('2013-02-18 16:46:00.01' as timestamp), 1)
+---- TYPES
+timestamp
+---- RESULTS
+2013-03-18 16:46:00.010000000
+====
+---- QUERY
 # test extract with non-constant field name
 select b.unit, extract(a.ts, b.unit) from
 (values(cast('2013-02-18 16:46:00.01' as timestamp) ts)) a