diff --git a/src/Components/Modules/AssetInterfaces/IFxWorld.cpp b/src/Components/Modules/AssetInterfaces/IFxWorld.cpp
index c69290c3..6ca93db4 100644
--- a/src/Components/Modules/AssetInterfaces/IFxWorld.cpp
+++ b/src/Components/Modules/AssetInterfaces/IFxWorld.cpp
@@ -53,6 +53,7 @@ namespace Assets
 					}
 				}
 
+				Utils::Stream::ClearPointer(&dest->glassSys.defs);
 			}
 
 			buffer->pushBlock(Game::XFILE_BLOCK_RUNTIME);