diff --git a/panel/panel-application.c b/panel/panel-application.c
index 9fbc0d7fcb88013512e9ea803d4535991a2ce74d..4ce1dc27338f4390b2fe8ce4361b5c80af85eb68 100644
--- a/panel/panel-application.c
+++ b/panel/panel-application.c
@@ -255,7 +255,7 @@ panel_application_xfconf_window_bindings (PanelApplication *application,
     { "background-alpha", G_TYPE_UINT },
     { "output-name", G_TYPE_STRING },
     { "position", G_TYPE_STRING },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   panel_return_if_fail (XFCONF_IS_CHANNEL (application->xfconf));
diff --git a/plugins/actions/actions.c b/plugins/actions/actions.c
index 78268fcb91e919743c3a02ec74f124eedfad1048..3444646dea720e4017e42b4f5f5c4c0b8e4b7caa 100644
--- a/plugins/actions/actions.c
+++ b/plugins/actions/actions.c
@@ -296,7 +296,7 @@ actions_plugin_construct (XfcePanelPlugin *panel_plugin)
   {
     { "first-action", G_TYPE_UINT },
     { "second-action", G_TYPE_UINT },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show the properties dialog */
diff --git a/plugins/launcher/launcher.c b/plugins/launcher/launcher.c
index 743fc1f8b5c9d8ec4c550b73abab27295dd77d63..548f9a0dc706577a53da3c7b8e2353a902cd08bd 100644
--- a/plugins/launcher/launcher.c
+++ b/plugins/launcher/launcher.c
@@ -645,7 +645,7 @@ launcher_plugin_construct (XfcePanelPlugin *panel_plugin)
     { "disable-tooltips", G_TYPE_BOOLEAN },
     { "move-first", G_TYPE_BOOLEAN },
     { "arrow-position", G_TYPE_UINT },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show the configure menu item */
diff --git a/plugins/pager/pager.c b/plugins/pager/pager.c
index d70f50cd13f76dc26ddc9b2bd0d59efc639e70e1..c38115315ceac930730032e109425b785a4a642e 100644
--- a/plugins/pager/pager.c
+++ b/plugins/pager/pager.c
@@ -305,7 +305,7 @@ pager_plugin_construct (XfcePanelPlugin *panel_plugin)
     { "workspace-scrolling", G_TYPE_BOOLEAN },
     { "show-names", G_TYPE_BOOLEAN },
     { "rows", G_TYPE_UINT },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show the properties dialog */
diff --git a/plugins/separator/separator.c b/plugins/separator/separator.c
index 6bdcb6ad552281c9b85c23537b52b230900f4957..a2226b247f1c74fe3e5926768b9d7f378cc7e22a 100644
--- a/plugins/separator/separator.c
+++ b/plugins/separator/separator.c
@@ -283,7 +283,7 @@ separator_plugin_construct (XfcePanelPlugin *panel_plugin)
   {
     { "style", G_TYPE_UINT },
     { "expand", G_TYPE_BOOLEAN },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show the properties dialog */
diff --git a/plugins/systray/systray.c b/plugins/systray/systray.c
index 839cd01fb59ba991e0ca34996878cf440fa03e92..e591d9fafcb4048d0c3d9c00f527d0a370975eb5 100644
--- a/plugins/systray/systray.c
+++ b/plugins/systray/systray.c
@@ -293,7 +293,7 @@ systray_plugin_construct (XfcePanelPlugin *panel_plugin)
   {
     { "rows", G_TYPE_UINT },
     { "show-frame", G_TYPE_BOOLEAN },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show configure */
diff --git a/plugins/tasklist/tasklist.c b/plugins/tasklist/tasklist.c
index b93e9a0ad76535ca8f23f90bda5004568df6544c..125e8c2e25884d9fe9e5a0aa5f7ead0dda4acdb4 100644
--- a/plugins/tasklist/tasklist.c
+++ b/plugins/tasklist/tasklist.c
@@ -127,7 +127,7 @@ tasklist_plugin_construct (XfcePanelPlugin *panel_plugin)
     { "show-only-minimized", G_TYPE_BOOLEAN },
     { "show-wireframes", G_TYPE_BOOLEAN },
     { "show-handle", G_TYPE_BOOLEAN },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show configure */
diff --git a/plugins/windowmenu/windowmenu.c b/plugins/windowmenu/windowmenu.c
index 08a81d5a584734d0d9ad1a4ffae080503c8f4fc2..5f34209d54714b8c8226011209e644c35d5da387 100644
--- a/plugins/windowmenu/windowmenu.c
+++ b/plugins/windowmenu/windowmenu.c
@@ -382,7 +382,7 @@ window_menu_plugin_construct (XfcePanelPlugin *panel_plugin)
     { "workspace-names", G_TYPE_BOOLEAN },
     { "urgentcy-notification", G_TYPE_BOOLEAN },
     { "all-workspaces", G_TYPE_BOOLEAN },
-    { NULL, G_TYPE_NONE }
+    { NULL }
   };
 
   /* show configure */