diff --git a/render.c b/render.c
index a18f90fe..26ca92d3 100644
--- a/render.c
+++ b/render.c
@@ -39,10 +39,6 @@ static struct {
 
 static void fdm_hook_refresh_pending_terminals(struct fdm *fdm, void *data);
 
-#define shm_cookie_grid(term) ((unsigned long)((uintptr_t)term + 0))
-#define shm_cookie_search(term) ((unsigned long)((uintptr_t)term + 1))
-#define shm_cookie_csd(term, n) ((unsigned long)((uintptr_t)term + 2 + (n)))  /* Should be placed last */
-
 struct renderer *
 render_init(struct fdm *fdm, struct wayland *wayl)
 {
diff --git a/shm.h b/shm.h
index 18da7a1f..eb9987ed 100644
--- a/shm.h
+++ b/shm.h
@@ -28,3 +28,8 @@ struct buffer *shm_get_buffer(
 void shm_fini(void);
 
 void shm_purge(struct wl_shm *shm, unsigned long cookie);
+
+struct terminal;
+static inline unsigned long shm_cookie_grid(const struct terminal *term) { return (unsigned long)((uintptr_t)term + 0); }
+static inline unsigned long shm_cookie_search(const struct terminal *term) { return (unsigned long)((uintptr_t)term + 1); }
+static inline unsigned long shm_cookie_csd(const struct terminal *term, int n) { return (unsigned long)((uintptr_t)term + 2 + (n)); }