@@ -130,15 +130,17 @@
 #   define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
 #   if __OBJFW_RUNTIME_ABI__ >= 800
 #    define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
 #   endif
 #  endif
-# elif defined(_WIN32) && defined(__i386__)
+# elif defined(_WIN32)
+#  if defined(__x86_64__) || defined(__i386__)
 #   define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
 #   if __OBJFW_RUNTIME_ABI__ >= 800
 #    define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
 #   endif
+#  endif
 # endif
 #endif
 
 #if __has_feature(objc_arc)
 # define OF_RETURNS_RETAINED __attribute__((ns_returns_retained))