diff --git a/docs/sphinx/reference-scenes.rst b/docs/sphinx/reference-scenes.rst
index d8eee24e8a091a..0fe40aeb0de2ef 100644
--- a/docs/sphinx/reference-scenes.rst
+++ b/docs/sphinx/reference-scenes.rst
@@ -326,6 +326,11 @@ Scene Item Functions
 
    :return: The sceneitem associated with a source in a scene. Returns NULL if not found.
 
+   .. deprecated:: 31.0
+      This function is problematic because there can be multiple items of the same source in a scene.
+      In that case, which of those this function will return is undefined.
+      If this is the behavior you need, manually use :c:func:`obs_scene_enum_items` instead.
+
 ---------------------
 
 .. function:: void obs_sceneitem_set_id(obs_sceneitem_t *item);
diff --git a/libobs/obs.h b/libobs/obs.h
index 0e366cc0aa6dc8..23bd3defeb1b60 100644
--- a/libobs/obs.h
+++ b/libobs/obs.h
@@ -1806,8 +1806,8 @@ EXPORT void obs_sceneitem_save(obs_sceneitem_t *item, obs_data_array_t *arr);
 EXPORT void obs_sceneitem_set_id(obs_sceneitem_t *sceneitem, int64_t id);
 
 /** Tries to find the sceneitem of the source in a given scene. Returns NULL if not found */
-EXPORT obs_sceneitem_t *obs_scene_sceneitem_from_source(obs_scene_t *scene,
-							obs_source_t *source);
+OBS_DEPRECATED EXPORT obs_sceneitem_t *
+obs_scene_sceneitem_from_source(obs_scene_t *scene, obs_source_t *source);
 
 /** Save all the transform states for a current scene's sceneitems */
 EXPORT obs_data_t *obs_scene_save_transform_states(obs_scene_t *scene,