diff --git a/tests/application/test_joining.py b/tests/application/test_joining.py
index b9f645b0..065646e4 100644
--- a/tests/application/test_joining.py
+++ b/tests/application/test_joining.py
@@ -9,36 +9,25 @@
 import zigpy_znp.types as t
 import zigpy_znp.commands as c
 
-from ..conftest import FORMED_DEVICES, FORMED_ZSTACK3_DEVICES, CoroutineMock
+from ..conftest import (
+    FORMED_DEVICES,
+    FORMED_ZSTACK3_DEVICES,
+    CoroutineMock,
+    FormedLaunchpadCC26X2R1,
+)
 
 pytestmark = [pytest.mark.asyncio]
 
 
-@pytest.mark.parametrize("device", FORMED_DEVICES)
-async def test_permit_join(device, make_application):
-    app, znp_server = make_application(server_cls=device)
-
-    # Handle the startup permit join clear
-    znp_server.reply_once_to(
-        request=c.ZDO.MgmtPermitJoinReq.Req(
-            AddrMode=t.AddrMode.NWK, Dst=0x0000, Duration=0, partial=True
-        ),
-        responses=[
-            c.ZDO.MgmtPermitJoinReq.Rsp(Status=t.Status.SUCCESS),
-            c.ZDO.MgmtPermitJoinRsp.Callback(Src=0x0000, Status=t.ZDOStatus.SUCCESS),
-        ],
-        override=True,
-    )
+@pytest.mark.parametrize(
+    "device,fixed_joining_bug",
+    [(d, False) for d in FORMED_DEVICES] + [(FormedLaunchpadCC26X2R1, True)],
+)
+async def test_permit_join(device, fixed_joining_bug, mocker, make_application):
+    if fixed_joining_bug:
+        mocker.patch.object(device, "code_revision", 20210708)
 
-    znp_server.reply_once_to(
-        request=c.ZDO.MgmtPermitJoinReq.Req(
-            AddrMode=t.AddrMode.Broadcast, Dst=0xFFFC, Duration=0, partial=True
-        ),
-        responses=[
-            c.ZDO.MgmtPermitJoinReq.Rsp(Status=t.Status.SUCCESS),
-            c.ZDO.MgmtPermitJoinRsp.Callback(Src=0x0000, Status=t.ZDOStatus.SUCCESS),
-        ],
-    )
+    app, znp_server = make_application(server_cls=device)
 
     # Handle us opening joins on the coordinator
     permit_join_coordinator = znp_server.reply_once_to(
@@ -65,8 +54,14 @@ async def test_permit_join(device, make_application):
     await app.startup(auto_form=False)
     await app.permit(time_s=10)
 
-    await permit_join_coordinator
-    await permit_join_broadcast
+    if fixed_joining_bug:
+        await permit_join_broadcast
+
+        # Joins should not have been opened on the coordinator
+        assert not permit_join_coordinator.done()
+    else:
+        await permit_join_coordinator
+        await permit_join_broadcast
 
     await app.shutdown()
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 4ea90878..bb9cf9fd 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -722,6 +722,7 @@ def zdo_route_check(self, request):
 class BaseZStack1CC2531(BaseZStackDevice):
     align_structs = False
     version = 1.2
+    code_revision = 20190608
 
     @reply_to(c.SYS.OSALNVRead.Req(partial=True))
     @reply_to(c.SYS.OSALNVReadExt.Req(partial=True))
@@ -766,7 +767,7 @@ def version_replier(self, request):
             MajorRel=2,
             MinorRel=6,
             MaintRel=3,
-            CodeRevision=20190608,
+            CodeRevision=self.code_revision,
             BootloaderBuildType=c.sys.BootloaderBuildType.BUILT_AS_BIN,
             BootloaderRevision=0,
         )
@@ -963,6 +964,7 @@ def connection_made(self):
 class BaseLaunchpadCC26X2R1(BaseZStack3Device):
     version = 3.30
     align_structs = True
+    code_revision = 20200805
 
     def create_nib(self, _=None):
         super().create_nib()
@@ -1034,7 +1036,7 @@ def version_replier(self, request):
             MajorRel=2,
             MinorRel=7,
             MaintRel=1,
-            CodeRevision=20200805,
+            CodeRevision=self.code_revision,
             BootloaderBuildType=c.sys.BootloaderBuildType.NON_BOOTLOADER_BUILD,
             BootloaderRevision=0xFFFFFFFF,
         )
@@ -1070,6 +1072,7 @@ def led_responder(self, req):
 class BaseZStack3CC2531(BaseZStack3Device):
     version = 3.0
     align_structs = False
+    code_revision = 20190425
 
     def create_nib(self, _=None):
         super().create_nib()
@@ -1100,7 +1103,7 @@ def version_replier(self, request):
             MajorRel=2,
             MinorRel=7,
             MaintRel=2,
-            CodeRevision=20190425,
+            CodeRevision=self.code_revision,
             BootloaderBuildType=c.sys.BootloaderBuildType.BUILT_AS_BIN,
             BootloaderRevision=0,
         )
diff --git a/zigpy_znp/zigbee/application.py b/zigpy_znp/zigbee/application.py
index 1eac10f7..edfac966 100644
--- a/zigpy_znp/zigbee/application.py
+++ b/zigpy_znp/zigbee/application.py
@@ -699,12 +699,12 @@ async def permit(self, time_s=60, node=None):
 
         LOGGER.info("Permitting joins for %d seconds", time_s)
 
+        # If joins were permitted through a specific router, older Z-Stack builds
+        # did not allow the key to be distributed unless the coordinator itself was
+        # also permitting joins.
+        #
+        # Fixed in https://github.com/Koenkk/Z-Stack-firmware/commit/efac5ee46b9b437
         if time_s == 0 or self._version_rsp.CodeRevision < 20210708:
-            # If joins were permitted through a specific router, older Z-Stack builds
-            # did not allow the key to be distributed unless the coordinator itself was
-            # also permitting joins.
-            #
-            # Fixed in https://github.com/Koenkk/Z-Stack-firmware/commit/efac5ee46b9b437
             response = await self._znp.request_callback_rsp(
                 request=c.ZDO.MgmtPermitJoinReq.Req(
                     AddrMode=t.AddrMode.NWK,
@@ -716,10 +716,10 @@ async def permit(self, time_s=60, node=None):
                 callback=c.ZDO.MgmtPermitJoinRsp.Callback(Src=0x0000, partial=True),
             )
 
-        if response.Status != t.Status.SUCCESS:
-            raise RuntimeError(f"Failed to permit joins on the coordinator: {response}")
+            if response.Status != t.Status.SUCCESS:
+                raise RuntimeError(f"Failed to permit joins on coordinator: {response}")
 
-        return await super().permit(time_s=time_s, node=node)
+        await super().permit(time_s=time_s, node=node)
 
     async def permit_ncp(self, time_s: int) -> None:
         """