diff --git a/openfpga_flow/tasks/basic_tests/full_testbench/multi_region_memory_bank/config/task.conf b/openfpga_flow/tasks/basic_tests/full_testbench/multi_region_memory_bank/config/task.conf
index 20914980b..004f3701a 100644
--- a/openfpga_flow/tasks/basic_tests/full_testbench/multi_region_memory_bank/config/task.conf
+++ b/openfpga_flow/tasks/basic_tests/full_testbench/multi_region_memory_bank/config/task.conf
@@ -19,7 +19,7 @@ fpga_flow=yosys_vpr
 openfpga_shell_template=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_shell_scripts/write_full_testbench_example_script.openfpga
 openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_N4_40nm_multi_region_bank_openfpga.xml
 openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/auto_sim_openfpga.xml
-openfpga_vpr_device_layout=2x2
+openfpga_vpr_device_layout=--device 2x2
 openfpga_fast_configuration=
 
 [ARCHITECTURES]