diff --git a/tests/functional/index/alter/test_04.py b/tests/functional/index/alter/test_04.py
index d3cdae9b..914249fe 100644
--- a/tests/functional/index/alter/test_04.py
+++ b/tests/functional/index/alter/test_04.py
@@ -3,33 +3,43 @@
 """
 ID:          index.alter-04
 TITLE:       ALTER INDEX - INACTIVE PRIMARY KEY
-DESCRIPTION:
+DESCRIPTION: An index participating in PK-constraint cannot be deactivated
 FBTEST:      functional.index.alter.04
+NOTES:
+    [08.08.2024] pzotov
+    Splitted expected* text because system triggers now are created in C++/GDML code
+    See https://github.com/FirebirdSQL/firebird/pull/8202
+    Commit (05-aug-2024 13"45):
+    https://github.com/FirebirdSQL/firebird/commit/0cc8de396a3c2bbe13b161ecbfffa8055e7b4929
 """
 
 import pytest
 from firebird.qa import *
 
-init_script = """CREATE TABLE t( a INTEGER NOT NULL,
-                CONSTRAINT pkindx PRIMARY KEY(a)
-              );
-commit;"""
-
+init_script = "recreate table test(id int primary key using index test_pk);"
 db = db_factory(init=init_script)
 
-test_script = """ALTER INDEX pkindx INACTIVE;"""
+test_script = "alter index test_pk inactive;"
 
 act = isql_act('db', test_script)
 
-expected_stderr = """Statement failed, SQLSTATE = 27000
-unsuccessful metadata update
--ALTER INDEX PKINDX failed
--action cancelled by trigger (3) to preserve data integrity
--Cannot deactivate index used by a PRIMARY/UNIQUE constraint
+expected_stdout_5x = """
+    Statement failed, SQLSTATE = 27000
+    unsuccessful metadata update
+    -ALTER INDEX TEST_PK failed
+    -action cancelled by trigger (3) to preserve data integrity
+    -Cannot deactivate index used by a PRIMARY/UNIQUE constraint
 """
+expected_stdout_6x = """
+    Statement failed, SQLSTATE = 42000
+    unsuccessful metadata update
+    -ALTER INDEX TEST_PK failed
+    -Cannot deactivate index used by a PRIMARY/UNIQUE constraint
+"""
+
 
 @pytest.mark.version('>=3.0')
 def test_1(act: Action):
-    act.expected_stderr = expected_stderr
-    act.execute()
-    assert act.clean_stderr == act.clean_expected_stderr
+    act.expected_stdout = expected_stdout_5x if act.is_version('<6') else expected_stdout_6x
+    act.execute(combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout