diff --git a/openfpga_flow/tasks/basic_tests/module_naming/using_index/config/task.conf b/openfpga_flow/tasks/basic_tests/module_naming/using_index/config/task.conf
index 8781d4fc5..f327229ec 100644
--- a/openfpga_flow/tasks/basic_tests/module_naming/using_index/config/task.conf
+++ b/openfpga_flow/tasks/basic_tests/module_naming/using_index/config/task.conf
@@ -21,7 +21,7 @@ openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_N4_40nm_
 openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/fixed_sim_openfpga.xml
 openfpga_group_tile_config_option=--group_tile ${PATH:TASK_DIR}/config/tile_config.xml
 openfpga_add_fpga_core_module=
-openfpga_vpr_device=auto
+openfpga_vpr_device=4x4
 openfpga_vpr_route_chan_width=20
 openfpga_fabric_module_name_options=--name_module_using_index