diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e903db4c..142fd51a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -24,7 +24,6 @@ elseif(UNIX)
         add_definitions(-DVK_USE_PLATFORM_XLIB_KHR) # legacy. Do we need to support XLIB surfaces?
         add_definitions(-DVK_USE_PLATFORM_XCB_KHR)
     endif()
-    add_definitions(-fms-extensions)
     add_definitions(-fpermissive)
     add_definitions(-maes)
     # warnings