diff --git a/extern/CMakeLists.txt b/extern/CMakeLists.txt
index 864237ed31..9a536069e6 100644
--- a/extern/CMakeLists.txt
+++ b/extern/CMakeLists.txt
@@ -69,10 +69,6 @@ if(NOT OPENMW_USE_SYSTEM_MYGUI)
     set(MYGUI_BUILD_PLUGINS OFF CACHE BOOL "")
     set(MYGUI_BUILD_TOOLS OFF CACHE BOOL "")
 
-    # We appear to be using some obsolete properties in the XML.
-    # See https://gitlab.com/OpenMW/openmw/-/issues/5896
-    set(MYGUI_DONT_USE_OBSOLETE OFF CACHE BOOL "")
-
     if(MYGUI_STATIC)
         set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
     else()