diff --git a/include/libweston/libweston.h b/include/libweston/libweston.h
index 6d49bb81..6bad5f98 100644
--- a/include/libweston/libweston.h
+++ b/include/libweston/libweston.h
@@ -1796,13 +1796,6 @@ weston_layer_set_mask_infinite(struct weston_layer *layer);
 bool
 weston_layer_mask_is_infinite(struct weston_layer *layer);
 
-void
-weston_plane_init(struct weston_plane *plane,
-			struct weston_compositor *ec,
-			int32_t x, int32_t y);
-void
-weston_plane_release(struct weston_plane *plane);
-
 /* An invalid flag in presented_flags to catch logic errors. */
 #define WP_PRESENTATION_FEEDBACK_INVALID (1U << 31)
 
diff --git a/libweston/libweston-internal.h b/libweston/libweston-internal.h
index a4689cfd..c62646b7 100644
--- a/libweston/libweston-internal.h
+++ b/libweston/libweston-internal.h
@@ -156,4 +156,12 @@ weston_compositor_xkb_destroy(struct weston_compositor *ec);
 int
 weston_input_init(struct weston_compositor *compositor);
 
+/* weston_plane */
+
+void
+weston_plane_init(struct weston_plane *plane,
+			struct weston_compositor *ec,
+			int32_t x, int32_t y);
+void
+weston_plane_release(struct weston_plane *plane);
 #endif