diff --git a/src/core/window.c b/src/core/window.c
index cb625c6a3..aade427a8 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -9739,23 +9739,6 @@ meta_window_is_remote (MetaWindow *window)
   return window->is_remote;
 }
 
-/**
- * meta_window_is_modal:
- * @window: a #MetaWindow
- *
- * Queries whether the window is in a modal state as described by the
- * _NET_WM_STATE protocol.
- *
- * Return value: (transfer none): TRUE if the window is in modal state.
- */
-gboolean
-meta_window_is_modal (MetaWindow *window)
-{
-  g_return_val_if_fail (META_IS_WINDOW (window), FALSE);
-
-  return window->wm_state_modal;
-}
-
 /**
  * meta_window_get_mutter_hints:
  * @window: a #MetaWindow
diff --git a/src/meta/window.h b/src/meta/window.h
index 09c82f9c1..f79088ba1 100644
--- a/src/meta/window.h
+++ b/src/meta/window.h
@@ -211,7 +211,6 @@ guint32     meta_window_get_user_time (MetaWindow *window);
 int         meta_window_get_pid (MetaWindow *window);
 const char *meta_window_get_client_machine (MetaWindow *window);
 gboolean    meta_window_is_remote (MetaWindow *window);
-gboolean    meta_window_is_modal (MetaWindow *window);
 gboolean    meta_window_is_attached_dialog (MetaWindow *window);
 const char *meta_window_get_mutter_hints (MetaWindow *window);