diff --git a/src/xenia/kernel/CMakeLists.txt b/src/xenia/kernel/CMakeLists.txt
index fefff2234..452ae489f 100644
--- a/src/xenia/kernel/CMakeLists.txt
+++ b/src/xenia/kernel/CMakeLists.txt
@@ -1,15 +1,13 @@
 add_library(xenia-kernel STATIC)
 xe_platform_sources(xenia-kernel ${CMAKE_CURRENT_SOURCE_DIR} RECURSIVE)
-target_compile_definitions(xenia-kernel PRIVATE
-  X86_FEATURES
-  X86_HAVE_XSAVE_INTRIN
-  X86_SSSE3
-  X86_SSE42
-  WITH_GZFILEOP
-)
-if(WIN32)
+target_compile_definitions(xenia-kernel PRIVATE WITH_GZFILEOP)
+if(XE_TARGET_X86_64)
   target_compile_definitions(xenia-kernel PRIVATE
+    X86_FEATURES
+    X86_HAVE_XSAVE_INTRIN
     X86_SSE2
+    X86_SSSE3
+    X86_SSE42
     X86_AVX2
     X86_AVX512
     X86_AVX512VNNI