diff --git a/src/scope/run_simulation.py b/src/scope/run_simulation.py
index d18126d..9140905 100644
--- a/src/scope/run_simulation.py
+++ b/src/scope/run_simulation.py
@@ -421,7 +421,7 @@ def simulate_observation(
 
     outdir = abs_path + f"/output/{modelname}"
 
-    make_outdir(modelname)
+    make_outdir(outdir)
 
     # and write the input file out
     write_input_file(locals(), output_file_path=f"{outdir}/input.txt")