diff --git a/artiq/compiler/testbench/perf_embedding.py b/artiq/compiler/testbench/perf_embedding.py
index ad6df71fa..e6a72857e 100644
--- a/artiq/compiler/testbench/perf_embedding.py
+++ b/artiq/compiler/testbench/perf_embedding.py
@@ -32,7 +32,7 @@ def main():
         experiment = testcase_vars["Benchmark"](dmgr)
 
         stitcher = Stitcher(core=experiment.core, dmgr=dmgr)
-        stitcher.stitch_call(experiment.run, (experiment,), {})
+        stitcher.stitch_call(experiment.run, (), {})
         stitcher.finalize()
         return stitcher