diff --git a/inst/examples/workflow_demos/read_from_benchmark.R b/inst/examples/workflow_demos/read_from_benchmark.R
index 15bcb0226dc44208ccefad14fd2611100fd0caa1..41f0047e41c0caf5d1464373ca5e302e12ebd149 100644
--- a/inst/examples/workflow_demos/read_from_benchmark.R
+++ b/inst/examples/workflow_demos/read_from_benchmark.R
@@ -15,7 +15,6 @@ library(r2ogs6)
 # Then we can create a simulation object.
 
 ogs6_obj <- OGS6$new(sim_name = "flow_free_expansion",
-                     sim_id = 1,
                      sim_path = "D:/OGS_Sim/")
 
 
@@ -31,4 +30,4 @@ read_in_prj(ogs6_obj, prj_path)
 #===== Run simulation =====
 
 
-e <- run_simulation(ogs6_obj, write_logfile = FALSE)
+e <- ogs_run_simulation(ogs6_obj, write_logfile = FALSE)