diff --git a/include/libweston/libweston.h b/include/libweston/libweston.h
index 423d8a65..3570d21c 100644
--- a/include/libweston/libweston.h
+++ b/include/libweston/libweston.h
@@ -1448,6 +1448,7 @@ struct weston_compositor {
 
 	struct weston_color_manager *color_manager;
 	struct weston_idalloc *color_profile_id_generator;
+	struct weston_idalloc *color_transform_id_generator;
 
 	struct weston_renderer *renderer;
 	const struct pixel_format_info *read_format;
diff --git a/libweston/color.c b/libweston/color.c
index 7c9c3e4b..df403333 100644
--- a/libweston/color.c
+++ b/libweston/color.c
@@ -150,6 +150,8 @@ weston_color_transform_unref(struct weston_color_transform *xform)
 		return;
 
 	wl_signal_emit(&xform->destroy_signal, xform);
+	weston_idalloc_put_id(xform->cm->compositor->color_transform_id_generator,
+			      xform->id);
 	xform->cm->destroy_color_transform(xform);
 }
 
@@ -168,6 +170,7 @@ weston_color_transform_init(struct weston_color_transform *xform,
 {
 	xform->cm = cm;
 	xform->ref_count = 1;
+	xform->id = weston_idalloc_get_id(cm->compositor->color_transform_id_generator);
 	wl_signal_init(&xform->destroy_signal);
 }
 
diff --git a/libweston/color.h b/libweston/color.h
index 1ac2a4e0..e0a40f5e 100644
--- a/libweston/color.h
+++ b/libweston/color.h
@@ -199,6 +199,7 @@ struct weston_color_mapping {
 struct weston_color_transform {
 	struct weston_color_manager *cm;
 	int ref_count;
+	uint32_t id; /* For debug */
 
 	/* for renderer or backend to attach their own cached objects */
 	struct wl_signal destroy_signal;
diff --git a/libweston/compositor.c b/libweston/compositor.c
index 5745af27..bb29b83b 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -9247,6 +9247,7 @@ weston_compositor_create(struct wl_display *display,
 	weston_compositor_install_capture_protocol(ec);
 
 	ec->color_profile_id_generator = weston_idalloc_create(ec);
+	ec->color_transform_id_generator = weston_idalloc_create(ec);
 
 	wl_list_init(&ec->view_list);
 	wl_list_init(&ec->plane_list);
@@ -9775,6 +9776,7 @@ weston_compositor_destroy(struct weston_compositor *compositor)
 	weston_log_scope_destroy(compositor->libseat_debug);
 	compositor->libseat_debug = NULL;
 
+	weston_idalloc_destroy(compositor->color_transform_id_generator);
 	weston_idalloc_destroy(compositor->color_profile_id_generator);
 
 	if (compositor->default_dmabuf_feedback) {