diff --git a/examples/10_epics/01_ophyd_async/accml_interface/01_tune_response_measurement.py b/examples/10_epics/01_ophyd_async/accml_interface/01_tune_response_measurement.py
index 2b5e647..5ec924f 100644
--- a/examples/10_epics/01_ophyd_async/accml_interface/01_tune_response_measurement.py
+++ b/examples/10_epics/01_ophyd_async/accml_interface/01_tune_response_measurement.py
@@ -45,7 +45,7 @@ async def main():
     await devices.get('quadrupole_pcs').connect()
 
     backend = OphydAsyncDeltaBackendRWProxy(
-        OphydAsyncDeviceBackendRW(devices=devices),
+        backend=OphydAsyncDeviceBackendRW(devices=devices),
         cache=StateCache(name="BESSY2_OphydAsync_Dev_State_Cache"),
     )
     mexec = BasicMeasurementExecutionEngine(
diff --git a/examples/10_epics/01_ophyd_async/accml_interface/03_tune_correction.py b/examples/10_epics/01_ophyd_async/accml_interface/03_tune_correction.py
index 7a6312b..6739546 100644
--- a/examples/10_epics/01_ophyd_async/accml_interface/03_tune_correction.py
+++ b/examples/10_epics/01_ophyd_async/accml_interface/03_tune_correction.py
@@ -33,7 +33,7 @@ async def main():
     await devices.get('quadrupole_pcs').connect()
 
     backend = OphydAsyncDeltaBackendRWProxy(
-        OphydAsyncDeviceBackendRW(devices=devices),
+        backend=OphydAsyncDeviceBackendRW(devices=devices),
         cache=StateCache(name="BESSY2_OphydAsync_Dev_State_Cache"),
     )
     mexec = BasicMeasurementExecutionEngine(