diff --git a/openfpga_flow/tasks/basic_tests/group_config_block/group_config_block_homo_fabric_tile_core_wrapper/config/task.conf b/openfpga_flow/tasks/basic_tests/group_config_block/group_config_block_homo_fabric_tile_core_wrapper/config/task.conf
index 81af76bfa..ec54e6ca9 100644
--- a/openfpga_flow/tasks/basic_tests/group_config_block/group_config_block_homo_fabric_tile_core_wrapper/config/task.conf
+++ b/openfpga_flow/tasks/basic_tests/group_config_block/group_config_block_homo_fabric_tile_core_wrapper/config/task.conf
@@ -21,6 +21,8 @@ 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/auto_sim_openfpga.xml
 openfpga_group_tile_config_option=--group_tile ${PATH:TASK_DIR}/config/tile_config.xml
 openfpga_add_fpga_core_module=add_fpga_core_to_fabric --instance_name fpga_core_inst
+openfpga_vpr_device=auto
+openfpga_vpr_route_chan_width=20
 
 [ARCHITECTURES]
 arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/vpr_arch/k4_N4_tileable_TileOrgzTl_40nm.xml