diff --git a/gdk/gdkdevice.c b/gdk/gdkdevice.c
index 19b14ec109..656cd1d64f 100644
--- a/gdk/gdkdevice.c
+++ b/gdk/gdkdevice.c
@@ -289,7 +289,8 @@ gdk_device_class_init (GdkDeviceClass *klass)
    */
   device_props[PROP_MODIFIER_STATE] =
       g_param_spec_flags ("modifier-state", NULL, NULL,
-                          GDK_TYPE_MODIFIER_TYPE, 0,
+                          GDK_TYPE_MODIFIER_TYPE,
+                          GDK_NO_MODIFIER_MASK,
                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 
   g_object_class_install_properties (object_class, LAST_PROP, device_props);
diff --git a/gtk/deprecated/gtkcellrendereraccel.c b/gtk/deprecated/gtkcellrendereraccel.c
index 28adfd5a2f..7e93773654 100644
--- a/gtk/deprecated/gtkcellrendereraccel.c
+++ b/gtk/deprecated/gtkcellrendereraccel.c
@@ -191,7 +191,7 @@ gtk_cell_renderer_accel_class_init (GtkCellRendererAccelClass *cell_accel_class)
                                    PROP_ACCEL_MODS,
                                    g_param_spec_flags ("accel-mods", NULL, NULL,
                                                        GDK_TYPE_MODIFIER_TYPE,
-                                                       0,
+                                                       GDK_NO_MODIFIER_MASK,
                                                        GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   /**
diff --git a/gtk/gtkshortcuttrigger.c b/gtk/gtkshortcuttrigger.c
index a18be8aa5e..759b7c0304 100644
--- a/gtk/gtkshortcuttrigger.c
+++ b/gtk/gtkshortcuttrigger.c
@@ -671,7 +671,7 @@ gtk_keyval_trigger_class_init (GtkKeyvalTriggerClass *klass)
   keyval_props[KEYVAL_PROP_MODIFIERS] =
     g_param_spec_flags (I_("modifiers"), NULL, NULL,
                         GDK_TYPE_MODIFIER_TYPE,
-                        0,
+                        GDK_NO_MODIFIER_MASK,
                         G_PARAM_STATIC_STRINGS |
                         G_PARAM_CONSTRUCT_ONLY |
                         G_PARAM_READWRITE);