diff --git a/NEWS.md b/NEWS.md
index 01c6eb4..bafbe80 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,11 @@
 # STorage Appliance Services (STAS)
 
+## Changes with release 2.4.1
+
+Bug fix:
+
+* Restore backward compatibility with libnvme 1.11 and earlier. The controller attribute `discovery_ctrl` was added in libnvme 1.12. Prior to this version, the method `discovery_ctrl_set()` is to be used.
+
 ## Changes with release 2.4
 
 New features:
diff --git a/meson.build b/meson.build
index 59f5929..f0be1eb 100644
--- a/meson.build
+++ b/meson.build
@@ -9,7 +9,7 @@
 project(
     'nvme-stas',
     meson_version: '>= 0.53.0',
-    version: '2.4',
+    version: '2.4.1',
     license: 'Apache-2.0',
     default_options: [
         'buildtype=release',
diff --git a/staslib/ctrl.py b/staslib/ctrl.py
index e18414e..9607228 100644
--- a/staslib/ctrl.py
+++ b/staslib/ctrl.py
@@ -221,7 +221,12 @@ class Controller(stas.ControllerABC):  # pylint: disable=too-many-instance-attri
             host_traddr=self.tid.host_traddr if self.tid.host_traddr else None,
             host_iface=host_iface,
         )
-        self._ctrl.discovery_ctrl = self._discovery_ctrl
+        try:
+            self._ctrl.discovery_ctrl = self._discovery_ctrl
+        except AttributeError:
+            # Note: discovery_ctrl_set() is deprecated. We keep it
+            # for backward compatibility with libnvme 1.11 and earlier.
+            self._ctrl.discovery_ctrl_set(self._discovery_ctrl)
 
         # Set the DHCHAP host key on the controller
         # NOTE that this may eventually have to