diff --git a/neutronclient/osc/v2/fwaas/firewallgroup.py b/neutronclient/osc/v2/fwaas/firewallgroup.py
index 68f0fa49c..b84442f13 100644
--- a/neutronclient/osc/v2/fwaas/firewallgroup.py
+++ b/neutronclient/osc/v2/fwaas/firewallgroup.py
@@ -215,8 +215,8 @@ class DeleteFirewallGroup(command.Command):
             except Exception as e:
                 result += 1
                 LOG.error(_("Failed to delete firewall group with "
-                            "name or ID '%(firewall_group)s': %(e)s") % {
-                          const.FWG: fwg, 'e': e})
+                            "name or ID '%(firewall_group)s': %(e)s"),
+                          {const.FWG: fwg, 'e': e})
 
         if result > 0:
             total = len(parsed_args.firewall_group)
diff --git a/neutronclient/osc/v2/fwaas/firewallpolicy.py b/neutronclient/osc/v2/fwaas/firewallpolicy.py
index b0f0a4243..84f890653 100644
--- a/neutronclient/osc/v2/fwaas/firewallpolicy.py
+++ b/neutronclient/osc/v2/fwaas/firewallpolicy.py
@@ -170,8 +170,8 @@ class DeleteFirewallPolicy(command.Command):
             except Exception as e:
                 result += 1
                 LOG.error(_("Failed to delete Firewall policy with "
-                            "name or ID '%(firewall_policy)s': %(e)s") % {
-                          const.FWP: fwp, 'e': e})
+                            "name or ID '%(firewall_policy)s': %(e)s"),
+                          {const.FWP: fwp, 'e': e})
 
         if result > 0:
             total = len(parsed_args.firewall_policy)
diff --git a/neutronclient/osc/v2/fwaas/firewallrule.py b/neutronclient/osc/v2/fwaas/firewallrule.py
index 377ede740..00b3b216e 100644
--- a/neutronclient/osc/v2/fwaas/firewallrule.py
+++ b/neutronclient/osc/v2/fwaas/firewallrule.py
@@ -229,8 +229,8 @@ class DeleteFirewallRule(command.Command):
             except Exception as e:
                 result += 1
                 LOG.error(_("Failed to delete Firewall rule with "
-                            "name or ID '%(firewall_rule)s': %(e)s") % {
-                                const.FWR: fwr, 'e': e})
+                            "name or ID '%(firewall_rule)s': %(e)s"),
+                          {const.FWR: fwr, 'e': e})
 
         if result > 0:
             total = len(parsed_args.firewall_rule)
diff --git a/neutronclient/osc/v2/trunk/network_trunk.py b/neutronclient/osc/v2/trunk/network_trunk.py
index acd6208db..0cee32e5d 100644
--- a/neutronclient/osc/v2/trunk/network_trunk.py
+++ b/neutronclient/osc/v2/trunk/network_trunk.py
@@ -112,8 +112,8 @@ class DeleteNetworkTrunk(command.Command):
             except Exception as e:
                 result += 1
                 LOG.error(_("Failed to delete trunk with name "
-                          "or ID '%(trunk)s': %(e)s")
-                          % {'trunk': trunk, 'e': e})
+                          "or ID '%(trunk)s': %(e)s"),
+                          {'trunk': trunk, 'e': e})
         if result > 0:
             total = len(parsed_args.trunk)
             msg = (_("%(result)s of %(total)s trunks failed "
diff --git a/tox.ini b/tox.ini
index d0fc45ec8..587612486 100644
--- a/tox.ini
+++ b/tox.ini
@@ -55,3 +55,5 @@ commands = sphinx-build -a -E -d releasenotes/build/doctrees -b html releasenote
 [flake8]
 show-source = true
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,tools
+# H904: Delay string interpolations at logging calls
+enable-extensions=H904