diff --git a/src/object/ObjectRepository.cpp b/src/object/ObjectRepository.cpp
index 18ae1ce8e5..e89f21dd7c 100644
--- a/src/object/ObjectRepository.cpp
+++ b/src/object/ObjectRepository.cpp
@@ -711,14 +711,6 @@ extern "C"
         return (void *)object;
     }
 
-    void * object_repository_get_loaded_object(uint8 objectType, uint8 entryIndex)
-    {
-        int index = GetObjectEntryIndex(objectType, entryIndex);
-
-        IObjectManager * objectManager = GetObjectManager();
-        return (void *)objectManager->GetLoadedObject(index);
-    }
-
     void object_repository_unload(size_t itemIndex)
     {
         // TODO
diff --git a/src/object/ObjectRepository.h b/src/object/ObjectRepository.h
index 1ee96967b4..9652f13708 100644
--- a/src/object/ObjectRepository.h
+++ b/src/object/ObjectRepository.h
@@ -86,7 +86,6 @@ const ObjectRepositoryItem *    object_repository_get_items();
 const ObjectRepositoryItem *    object_repository_find_object_by_entry(const rct_object_entry * entry);
 const ObjectRepositoryItem *    object_repository_find_object_by_name(const char * name);
 void *                          object_repository_load_object(const rct_object_entry * objectEntry);
-void *                          object_repository_get_loaded_object(uint8 objectType, uint8 entryIndex);
 void                            object_repository_unload(size_t itemIndex);
 
 void            object_delete(void * object);
diff --git a/src/windows/editor_inventions_list.c b/src/windows/editor_inventions_list.c
index f15c16a0cb..25fee9c2eb 100644
--- a/src/windows/editor_inventions_list.c
+++ b/src/windows/editor_inventions_list.c
@@ -23,6 +23,7 @@
 #include "../localisation/localisation.h"
 #include "../management/research.h"
 #include "../object.h"
+#include "../object/ObjectManager.h"
 #include "../object/ObjectRepository.h"
 #include "../rct1.h"
 #include "../sprites.h"
@@ -783,9 +784,12 @@ static void window_editor_inventions_list_paint(rct_window *w, rct_drawpixelinfo
 	if (chunk == NULL || chunk == (void*)0xFFFFFFFF)
 		return;
 
+	rct_object_entry * entry = &object_entry_groups[objectEntryType].entries[researchItem->entryIndex & 0xFF].entry;
+
 	// Draw preview
 	widget = &w->widgets[WIDX_PREVIEW];
-	void * object = object_repository_get_loaded_object(objectEntryType, researchItem->entryIndex & 0xFF);
+
+	void * object = object_manager_get_loaded_object(entry);
 	if (object != NULL) {
 		rct_drawpixelinfo clipDPI;
 		x = w->x + widget->left + 1;