diff --git a/src/niveristand/_translation/py2rtseq/custom_generate_error.py b/src/niveristand/_translation/py2rtseq/custom_generate_error.py
index 77b63c3..ad83f07 100644
--- a/src/niveristand/_translation/py2rtseq/custom_generate_error.py
+++ b/src/niveristand/_translation/py2rtseq/custom_generate_error.py
@@ -13,7 +13,7 @@ def custom_generate_error(node, resources):
         error_code = eval(utils.generic_ast_node_transform(node.args[0], resources))
     except NameError:
         raise TranslateError(_errormessages.invalid_error_code_for_generate_error)
-    message = node.args[1].s
+    message = node.args[1].value
     action = ErrorAction[node.args[2].attr]
     realtimesequencedefinition.add_generate_error(
         resources.get_current_block(), error_code, message, action.value
diff --git a/src/niveristand/_translation/py2rtseq/functiondef_transformer.py b/src/niveristand/_translation/py2rtseq/functiondef_transformer.py
index 7336c81..29127d8 100644
--- a/src/niveristand/_translation/py2rtseq/functiondef_transformer.py
+++ b/src/niveristand/_translation/py2rtseq/functiondef_transformer.py
@@ -59,7 +59,7 @@ def _decorator_to_arg(node, resources):
         by_value_str = utils.get_variable_name_from_node(node.args[2])
         by_value_str = getattr(_decorators.NivsParam, by_value_str.split(".")[-1], by_value_str)
         by_value = BooleanValue(by_value_str).value
-    elif "NameConstant" in dir(ast) and utils.is_node_ast_nameconstant(node.args[2]):
+    elif "Constant" in dir(ast) and utils.is_node_ast_nameconstant(node.args[2]):
         by_value = utils.get_value_from_nameconstant_node(node.args[2])
 
     if arg_name is None or def_value is None or by_value is None:
diff --git a/src/niveristand/_translation/py2rtseq/unittests/test_nameconstant_transformer.py b/src/niveristand/_translation/py2rtseq/unittests/test_nameconstant_transformer.py
index da7c42c..5f23b02 100644
--- a/src/niveristand/_translation/py2rtseq/unittests/test_nameconstant_transformer.py
+++ b/src/niveristand/_translation/py2rtseq/unittests/test_nameconstant_transformer.py
@@ -5,18 +5,18 @@
 
 
 def test_true_node_returns_true_string():
-    node = ast.NameConstant(value=True)
+    node = ast.Constant(value=True)
     res = nameconstant_transformer.nameconstant_transformer(node, None)
     assert res == "true"
 
 
 def test_false_node_returns_false_string():
-    node = ast.NameConstant(value=False)
+    node = ast.Constant(value=False)
     res = nameconstant_transformer.nameconstant_transformer(node, None)
     assert res == "false"
 
 
 def test_none_node_throws():
-    node = ast.NameConstant(value=None)
+    node = ast.Constant(value=None)
     with pytest.raises(errors.TranslateError):
         nameconstant_transformer.nameconstant_transformer(node, None)
diff --git a/tox.ini b/tox.ini
index fa87c2e..c43b85f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -39,6 +39,7 @@ deps =
     flake8-junit-report
 commands =
     - flake8 src/niveristand/ tests/ examples/ setup.py --exclude tests/legacy,tests/sdf_api,_auto_generated_classes.py,src/niveristand/**/__init__.py --output-file {envlogdir}/{envname}.txt --tee
+    python -c "open(r'{envlogdir}/{envname}.txt', 'a').close()"
     flake8_junit {envlogdir}/{envname}.txt {envlogdir}/junit-{envname}.xml
 
 [flake8]