diff --git a/src/python/impactx/dashboard/Analyze/plotsMain.py b/src/python/impactx/dashboard/Analyze/plotsMain.py
index e85d49068..b619e2305 100644
--- a/src/python/impactx/dashboard/Analyze/plotsMain.py
+++ b/src/python/impactx/dashboard/Analyze/plotsMain.py
@@ -152,7 +152,6 @@ async def print_lines():
             ctrl.terminal_print(line)
         ctrl.terminal_print("Simulation complete.")
 
-
     asyncio.create_task(print_lines())
 
 
@@ -176,7 +175,7 @@ def on_filtered_data_change(**kwargs):
 
 @ctrl.add("run_simulation")
 def run_simulation_and_store():
-    state.simulation_complete = True,
+    state.simulation_complete = (True,)
     state.plot_options = available_plot_options(simulationClicked=True)
     run_simulation_impactX()
     update_plot()
diff --git a/tests/python/dashboard/test_dashboard.py b/tests/python/dashboard/test_dashboard.py
index a455d88d9..186e9a216 100644
--- a/tests/python/dashboard/test_dashboard.py
+++ b/tests/python/dashboard/test_dashboard.py
@@ -81,7 +81,9 @@ def test_dashboard():
             sb.click("#Run_route")
             sb.click("#run_simulation_button")
 
-            assert check_until_visible(sb, "#simulation_complete"), "Simulation did not complete successfully."
+            assert check_until_visible(
+                sb, "#simulation_complete"
+            ), "Simulation did not complete successfully."
 
     finally:
         if app_process is not None: