diff --git a/mypy-files.txt b/mypy-files.txt
index 75895136a..3e5543d0f 100644
--- a/mypy-files.txt
+++ b/mypy-files.txt
@@ -15,6 +15,7 @@ os_brick/initiator/connectors/remotefs.py
 os_brick/initiator/host_driver.py
 os_brick/initiator/linuxfc.py
 os_brick/initiator/utils.py
+os_brick/privileged/nvmeof.py
 os_brick/remotefs/remotefs.py
 os_brick/initiator/linuxrbd.py
 os_brick/encryptors/luks.py
diff --git a/os_brick/privileged/nvmeof.py b/os_brick/privileged/nvmeof.py
index 6ddc38629..470385022 100644
--- a/os_brick/privileged/nvmeof.py
+++ b/os_brick/privileged/nvmeof.py
@@ -27,7 +27,7 @@ LOG = logging.getLogger(__name__)
 
 
 @os_brick.privileged.default.entrypoint
-def create_hostnqn():
+def create_hostnqn() -> str:
     """Create the hostnqn file to speed up finding out the nqn.
 
     By having the /etc/nvme/hostnqn not only do we make sure that that value is