diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3a57356ab3..1e977e8a8c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -62,6 +62,10 @@ else()
         -Wno-unused-parameter
     )
 
+    if (ARCHITECTURE_x86_64)
+        add_compile_options("-mcx16")
+    endif()
+
     if (APPLE AND CMAKE_CXX_COMPILER_ID STREQUAL Clang)
         add_compile_options("-stdlib=libc++")
     endif()