diff --git a/CMakeLists.txt b/CMakeLists.txt
index 73b4e69a555..7aa199fdaf9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -159,6 +159,9 @@ else()
             add_definitions(-D_M_IX86)
         endif()
         add_definitions(-D_X86_ -D__i386__ -Di386)
+        if(SARCH STREQUAL "xbox")
+            add_definitions(-DSARCH_XBOX)
+        endif()
     elseif(ARCH STREQUAL "amd64")
         add_definitions(-D_M_AMD64 -D_AMD64_ -D__x86_64__ -D_WIN64)
     elseif(ARCH STREQUAL "arm")