diff --git a/src/Access/ContextAccess.cpp b/src/Access/ContextAccess.cpp
index 400ee55a35d..744c3571175 100644
--- a/src/Access/ContextAccess.cpp
+++ b/src/Access/ContextAccess.cpp
@@ -425,6 +425,7 @@ bool ContextAccess::checkAccessImplHelper(const AccessFlags & flags, const Args
             | AccessType::TRUNCATE;
 
         const AccessFlags dictionary_ddl = AccessType::CREATE_DICTIONARY | AccessType::DROP_DICTIONARY;
+        const AccessFlags function_ddl = AccessType::CREATE_FUNCTION | AccessType::DROP_FUNCTION;
         const AccessFlags table_and_dictionary_ddl = table_ddl | dictionary_ddl;
         const AccessFlags write_table_access = AccessType::INSERT | AccessType::OPTIMIZE;
         const AccessFlags write_dcl_access = AccessType::ACCESS_MANAGEMENT - AccessType::SHOW_ACCESS;
@@ -432,7 +433,7 @@ bool ContextAccess::checkAccessImplHelper(const AccessFlags & flags, const Args
         const AccessFlags not_readonly_flags = write_table_access | table_and_dictionary_ddl | write_dcl_access | AccessType::SYSTEM | AccessType::KILL_QUERY;
         const AccessFlags not_readonly_1_flags = AccessType::CREATE_TEMPORARY_TABLE;
 
-        const AccessFlags ddl_flags = table_ddl | dictionary_ddl;
+        const AccessFlags ddl_flags = table_ddl | dictionary_ddl | function_ddl;
         const AccessFlags introspection_flags = AccessType::INTROSPECTION;
     };
     static const PrecalculatedFlags precalc;
diff --git a/src/Access/tests/gtest_access_rights_ops.cpp b/src/Access/tests/gtest_access_rights_ops.cpp
index 2881825dd17..2b4fbf411fe 100644
--- a/src/Access/tests/gtest_access_rights_ops.cpp
+++ b/src/Access/tests/gtest_access_rights_ops.cpp
@@ -45,7 +45,7 @@ TEST(AccessRights, Union)
     lhs.grant(AccessType::INSERT);
     rhs.grant(AccessType::ALL, "db1");
     lhs.makeUnion(rhs);
-    ASSERT_EQ(lhs.toString(), "GRANT INSERT ON *.*, GRANT SHOW, SELECT, ALTER, CREATE DATABASE, CREATE TABLE, CREATE VIEW, CREATE DICTIONARY, CREATE FUNCTION, DROP, TRUNCATE, OPTIMIZE, SYSTEM MERGES, SYSTEM TTL MERGES, SYSTEM FETCHES, SYSTEM MOVES, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, SYSTEM DROP REPLICA, SYSTEM SYNC REPLICA, SYSTEM RESTART REPLICA, SYSTEM RESTORE REPLICA, SYSTEM FLUSH DISTRIBUTED, dictGet ON db1.*");
+    ASSERT_EQ(lhs.toString(), "GRANT INSERT ON *.*, GRANT SHOW, SELECT, ALTER, CREATE DATABASE, CREATE TABLE, CREATE VIEW, CREATE DICTIONARY, DROP DATABASE, DROP TABLE, DROP VIEW, DROP DICTIONARY, TRUNCATE, OPTIMIZE, SYSTEM MERGES, SYSTEM TTL MERGES, SYSTEM FETCHES, SYSTEM MOVES, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, SYSTEM DROP REPLICA, SYSTEM SYNC REPLICA, SYSTEM RESTART REPLICA, SYSTEM RESTORE REPLICA, SYSTEM FLUSH DISTRIBUTED, dictGet ON db1.*");
 }