diff --git a/src/fbd-dev-led-multicolor.c b/src/fbd-dev-led-multicolor.c
index 29e0b7b..8432e5b 100644
--- a/src/fbd-dev-led-multicolor.c
+++ b/src/fbd-dev-led-multicolor.c
@@ -21,23 +21,26 @@
 #define LED_MULTI_INDEX_BLUE     "blue"
 #define LED_MULTI_INTENSITY_ATTR "multi_intensity"
 
-
-typedef struct _FbdDevLedMulticolor {
-  FbdDevLed           parent;
-
+/**
+ * fbd-dev-led-multicolor:
+ *
+ * A multicolor led using the kernels "multi_intensitiy"
+ */
+typedef struct _FbdDevLedMulticolorPrivate {
   guint               red_index;
   guint               green_index;
   guint               blue_index;
-} FbdDevLedMulticolor;
+} FbdDevLedMulticolorPrivate;
 
 
-G_DEFINE_TYPE (FbdDevLedMulticolor, fbd_dev_led_multicolor, FBD_TYPE_DEV_LED)
+G_DEFINE_TYPE_WITH_PRIVATE (FbdDevLedMulticolor, fbd_dev_led_multicolor, FBD_TYPE_DEV_LED)
 
 
 static gboolean
 fbd_dev_led_probe_multicolor (FbdDevLed *led, GError **error)
 {
   FbdDevLedMulticolor *self = FBD_DEV_LED_MULTICOLOR (led);
+  FbdDevLedMulticolorPrivate *priv = fbd_dev_led_multicolor_get_instance_private (self);
   GUdevDevice *dev = fbd_dev_led_get_device (led);
   const gchar *name, *path;
   const gchar * const *index;
@@ -67,13 +70,13 @@ fbd_dev_led_probe_multicolor (FbdDevLed *led, GError **error)
   for (int i = 0; index[i] != NULL; i++) {
     g_debug ("Index: %s", index[i]);
     if (g_strcmp0 (index[i], LED_MULTI_INDEX_RED) == 0) {
-      self->red_index = counter;
+      priv->red_index = counter;
       counter++;
     } else if (g_strcmp0 (index[i], LED_MULTI_INDEX_GREEN) == 0) {
-      self->green_index = counter;
+      priv->green_index = counter;
       counter++;
     } else if (g_strcmp0 (index[i], LED_MULTI_INDEX_BLUE) == 0) {
-      self->blue_index = counter;
+      priv->blue_index = counter;
       counter++;
     } else {
       g_warning ("Unsupport LED color index: %d %s", counter, index[i]);
@@ -93,6 +96,7 @@ fbd_dev_led_start_periodic_multicolor (FbdDevLed           *led,
                                        guint                freq)
 {
   FbdDevLedMulticolor *self = FBD_DEV_LED_MULTICOLOR (led);
+  FbdDevLedMulticolorPrivate *priv = fbd_dev_led_multicolor_get_instance_private (self);
   GUdevDevice *dev = fbd_dev_led_get_device (led);
   g_autofree char *intensity = NULL;
   g_autoptr (GError) err = NULL;
@@ -104,24 +108,24 @@ fbd_dev_led_start_periodic_multicolor (FbdDevLed           *led,
   max_brightness = fbd_dev_led_get_max_brightness (led);
   switch (color) {
   case FBD_FEEDBACK_LED_COLOR_WHITE:
-    colors[self->red_index] = max_brightness;
-    colors[self->green_index] = max_brightness;
-    colors[self->blue_index] = max_brightness;
+    colors[priv->red_index] = max_brightness;
+    colors[priv->green_index] = max_brightness;
+    colors[priv->blue_index] = max_brightness;
     break;
   case FBD_FEEDBACK_LED_COLOR_RED:
-    colors[self->red_index] = max_brightness;
-    colors[self->green_index] = 0;
-    colors[self->blue_index] = 0;
+    colors[priv->red_index] = max_brightness;
+    colors[priv->green_index] = 0;
+    colors[priv->blue_index] = 0;
     break;
   case FBD_FEEDBACK_LED_COLOR_GREEN:
-    colors[self->red_index] = 0;
-    colors[self->green_index] = max_brightness;
-    colors[self->blue_index] = 0;
+    colors[priv->red_index] = 0;
+    colors[priv->green_index] = max_brightness;
+    colors[priv->blue_index] = 0;
     break;
   case FBD_FEEDBACK_LED_COLOR_BLUE:
-    colors[self->red_index] = 0;
-    colors[self->green_index] = 0;
-    colors[self->blue_index] = max_brightness;
+    colors[priv->red_index] = 0;
+    colors[priv->green_index] = 0;
+    colors[priv->blue_index] = max_brightness;
     break;
   default:
     g_warning("Unhandled color: %d\n", color);
diff --git a/src/fbd-dev-led-multicolor.h b/src/fbd-dev-led-multicolor.h
index 79f17fe..fc713c1 100644
--- a/src/fbd-dev-led-multicolor.h
+++ b/src/fbd-dev-led-multicolor.h
@@ -11,8 +11,12 @@ G_BEGIN_DECLS
 
 #define FBD_TYPE_DEV_LED_MULTICOLOR fbd_dev_led_multicolor_get_type()
 
-G_DECLARE_FINAL_TYPE (FbdDevLedMulticolor, fbd_dev_led_multicolor, FBD, DEV_LED_MULTICOLOR, FbdDevLed)
+G_DECLARE_DERIVABLE_TYPE (FbdDevLedMulticolor, fbd_dev_led_multicolor, FBD, DEV_LED_MULTICOLOR, FbdDevLed)
 
 FbdDevLed          *fbd_dev_led_multicolor_new  (GUdevDevice *dev, GError **err);
 
+struct _FbdDevLedMulticolorClass {
+  FbdDevLedClass parent_class;
+};
+
 G_END_DECLS