diff --git a/src/controller/python/chip/ChipDeviceCtrl.py b/src/controller/python/chip/ChipDeviceCtrl.py
index 7aee0710f9b070..92842c50361655 100644
--- a/src/controller/python/chip/ChipDeviceCtrl.py
+++ b/src/controller/python/chip/ChipDeviceCtrl.py
@@ -2224,7 +2224,7 @@ async def get_commissioning_rcac_data_async(self):
 
     async def CommissionOnNetwork(self, nodeId: int, setupPinCode: int,
                                   filterType: DiscoveryFilterType = DiscoveryFilterType.NONE, filter: typing.Any = None,
-                                  discoveryTimeoutMsec: int = 30000, get_rcac: bool = False) -> int:
+                                  discoveryTimeoutMsec: int = 30000) -> int:
         '''
         Does the routine for OnNetworkCommissioning, with a filter for mDNS discovery.
         Supported filters are:
@@ -2259,15 +2259,7 @@ async def CommissionOnNetwork(self, nodeId: int, setupPinCode: int,
                     self.devCtrl, self.pairingDelegate, nodeId, setupPinCode, int(filterType), str(filter).encode("utf-8") if filter is not None else None, discoveryTimeoutMsec)
             )
 
-            res = await asyncio.futures.wrap_future(ctx.future)
-
-            # If RCAC data is wanted, attempt to pull the result
-            if get_rcac:
-                rcac_bytes = self.get_rcac()
-                return (res, rcac_bytes)
-
-            else:
-                return res
+            return await asyncio.futures.wrap_future(ctx.future)
 
     def get_rcac(self):
         try:
diff --git a/src/python_testing/TC_CADMIN_1_3_4.py b/src/python_testing/TC_CADMIN_1_3_4.py
index 10a12897ab89a6..9748c42b22cf8c 100644
--- a/src/python_testing/TC_CADMIN_1_3_4.py
+++ b/src/python_testing/TC_CADMIN_1_3_4.py
@@ -160,9 +160,10 @@ async def test_TC_CADMIN_1_3(self):
         th2_certificate_authority = self.certificate_authority_manager.NewCertificateAuthority()
         th2_fabric_admin = th2_certificate_authority.NewFabricAdmin(vendorId=0xFFF1, fabricId=self.th1.fabricId + 1)
         self.th2 = th2_fabric_admin.NewController(nodeId=2, useTestCommissioner=True)
-        _, rcac = await self.th2.CommissionOnNetwork(
+        await self.th2.CommissionOnNetwork(
             nodeId=self.dut_node_id, setupPinCode=params.setupPinCode,
-            filterType=ChipDeviceCtrl.DiscoveryFilterType.LONG_DISCRIMINATOR, filter=1234, get_rcac=True)
+            filterType=ChipDeviceCtrl.DiscoveryFilterType.LONG_DISCRIMINATOR, filter=1234)
+        rcac = self.th2.get_rcac()
 
         th2_rcac_decoded = TLVReader(rcac).get()["Any"][9]
 
@@ -324,9 +325,10 @@ async def test_TC_CADMIN_1_4(self):
         th2_certificate_authority = self.certificate_authority_manager.NewCertificateAuthority()
         th2_fabric_admin = th2_certificate_authority.NewFabricAdmin(vendorId=0xFFF1, fabricId=self.th1.fabricId + 1)
         self.th2 = th2_fabric_admin.NewController(nodeId=2, useTestCommissioner=True)
-        _, rcac = await self.th2.CommissionOnNetwork(
+        await self.th2.CommissionOnNetwork(
             nodeId=self.dut_node_id, setupPinCode=setupPayloadInfo[0].passcode,
-            filterType=ChipDeviceCtrl.DiscoveryFilterType.LONG_DISCRIMINATOR, filter=setupPayloadInfo[0].filter_value, get_rcac=True)
+            filterType=ChipDeviceCtrl.DiscoveryFilterType.LONG_DISCRIMINATOR, filter=setupPayloadInfo[0].filter_value)
+        rcac = self.th2.get_rcac()
 
         th2_rcac_decoded = TLVReader(rcac).get()["Any"][9]