diff --git a/src/ppd-action.h b/src/ppd-action.h
index b4a7da8..ee23521 100644
--- a/src/ppd-action.h
+++ b/src/ppd-action.h
@@ -25,6 +25,8 @@ struct _PpdActionClass
                                        GError    **error);
 };
 
+#ifndef __GTK_DOC_IGNORE__
 gboolean ppd_action_probe (PpdAction *action);
 gboolean ppd_action_activate_profile (PpdAction *action, PpdProfile profile, GError **error);
 const char *ppd_action_get_action_name (PpdAction *action);
+#endif
diff --git a/src/ppd-driver.h b/src/ppd-driver.h
index cb38ad4..fe19fda 100644
--- a/src/ppd-driver.h
+++ b/src/ppd-driver.h
@@ -25,9 +25,11 @@ struct _PpdDriverClass
                                        GError     **error);
 };
 
+#ifndef __GTK_DOC_IGNORE__
 gboolean ppd_driver_probe (PpdDriver *driver);
 gboolean ppd_driver_activate_profile (PpdDriver *driver, PpdProfile profile, GError **error);
 const char *ppd_driver_get_driver_name (PpdDriver *driver);
 PpdProfile ppd_driver_get_profiles (PpdDriver *driver);
 const char *ppd_driver_get_performance_inhibited (PpdDriver *driver);
 gboolean ppd_driver_is_performance_inhibited (PpdDriver *driver);
+#endif