diff --git a/test_regress/t/t_modport_expression_partsel.py b/test_regress/t/t_interface_modport_expr.py
similarity index 100%
rename from test_regress/t/t_modport_expression_partsel.py
rename to test_regress/t/t_interface_modport_expr.py
diff --git a/test_regress/t/t_modport_expressions.v b/test_regress/t/t_interface_modport_expr.v
similarity index 100%
rename from test_regress/t/t_modport_expressions.v
rename to test_regress/t/t_interface_modport_expr.v
diff --git a/test_regress/t/t_modport_expressions.py b/test_regress/t/t_interface_modport_expr_partsel.py
similarity index 100%
rename from test_regress/t/t_modport_expressions.py
rename to test_regress/t/t_interface_modport_expr_partsel.py
diff --git a/test_regress/t/t_modport_expression_partsel.v b/test_regress/t/t_interface_modport_expr_partsel.v
similarity index 100%
rename from test_regress/t/t_modport_expression_partsel.v
rename to test_regress/t/t_interface_modport_expr_partsel.v