diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6045ebc734..a48a9e7abf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -102,6 +102,7 @@ set(AURORA_ENABLE_DVD ON CACHE BOOL "Enable DVD API support" FORCE)
 set(AURORA_ENABLE_CARD ON CACHE BOOL "Enable CARD API support" FORCE)
 set(AURORA_ENABLE_RMLUI ON CACHE BOOL "Enable RmlUi UI support" FORCE)
 add_subdirectory(extern/aurora EXCLUDE_FROM_ALL)
+target_compile_definitions(aurora_mtx PRIVATE MTX_USE_PS=1)
 
 add_subdirectory(libs/freeverb)
 
@@ -285,7 +286,7 @@ set(DUSK_COPYRIGHT "Copyright (C) Twilit Realm contributors")
 source_group("dolzel" FILES ${DOLZEL_FILES} ${Z2AUDIOLIB_FILES} ${REL_FILES})
 source_group("dusk" FILES ${DUSK_FILES})
 
-set(GAME_COMPILE_DEFS TARGET_PC WIDESCREEN_SUPPORT=1 AVOID_UB=1 VERSION=0)
+set(GAME_COMPILE_DEFS TARGET_PC WIDESCREEN_SUPPORT=1 AVOID_UB=1 VERSION=0 MTX_USE_PS=1)
 
 set(GAME_INCLUDE_DIRS
     include
diff --git a/extern/aurora b/extern/aurora
index 69fcfbffc2..e88aa6b1b3 160000
--- a/extern/aurora
+++ b/extern/aurora
@@ -1 +1 @@
-Subproject commit 69fcfbffc281ef1c24e5334b98e99fe8faf87adc
+Subproject commit e88aa6b1b35b302c513270c7b3a8c2caa10d708e