diff --git a/plugins/needs_restarting.py b/plugins/needs_restarting.py
index 91f7e11..69203f4 100644
--- a/plugins/needs_restarting.py
+++ b/plugins/needs_restarting.py
@@ -37,8 +37,8 @@ import stat
 
 # For which package updates we should recommend a reboot
 # Mostly taken from https://access.redhat.com/solutions/27943
-NEED_REBOOT = ['kernel', 'glibc', 'linux-firmware', 'systemd', 'dbus',
-               'dbus-broker', 'dbus-daemon']
+NEED_REBOOT = ['kernel', 'kernel-rt', 'glibc', 'linux-firmware',
+               'systemd', 'dbus', 'dbus-broker', 'dbus-daemon']
 
 def get_options_from_dir(filepath, base):
     """
@@ -46,6 +46,8 @@ def get_options_from_dir(filepath, base):
     Return set of package names contained in files under filepath
     """
 
+    if not os.path.exists(filepath):
+        return set()
     options = set()
     for file in os.listdir(filepath):
         if os.path.isdir(file) or not file.endswith('.conf'):
@@ -58,9 +60,9 @@ def get_options_from_dir(filepath, base):
     packages = set()
     for pkg in base.sack.query().installed().filter(name={x[0] for x in options}):
         packages.add(pkg.name)
-    for name, file in {x for x in options if x[0] not in packages }:
+    for name, file in {x for x in options if x[0] not in packages}:
         logger.warning(
-            _('No installed package found for package name "{pkg}"'
+            _('No installed package found for package name "{pkg}" '
                 'specified in needs-restarting file "{file}".'.format(pkg=name, file=file)))
     return packages