diff --git a/LEGO1/lego/legoomni/src/entity/legoworld.cpp b/LEGO1/lego/legoomni/src/entity/legoworld.cpp
index b1adcaa4..6cc2363a 100644
--- a/LEGO1/lego/legoomni/src/entity/legoworld.cpp
+++ b/LEGO1/lego/legoomni/src/entity/legoworld.cpp
@@ -169,7 +169,7 @@ MxPresenter* LegoWorld::FindPresenter(const char* p_presenter, const char* p_nam
 }
 
 // FUNCTION: LEGO1 0x10021790
-MxCore* LegoWorld::FUN_10021790(MxAtomId& p_atom, MxS32 p_entityId)
+MxCore* LegoWorld::FUN_10021790(const MxAtomId& p_atom, MxS32 p_entityId)
 {
 	LegoEntityListCursor entityCursor(m_entityList);
 	LegoEntity* entity;