diff --git a/src/node_net.cc b/src/node_net.cc
index f5a15ccb7f..516994be23 100644
--- a/src/node_net.cc
+++ b/src/node_net.cc
@@ -350,12 +350,11 @@ static Handle<Value> Connect(const Arguments& args) {
   return Undefined();
 }
 
-#if !defined(SUN_LEN)
-# if defined(__APPLE__)
-#  define SUN_LEN(ptr) ((ptr)->sun_len-2)
-# else
-#  define SUN_LEN(ptr) strlen((ptr)->sun_path)
-#endif
+// Mac's SUN_LEN is broken
+#if defined(__APPLE__)
+# define SUN_LEN(ptr) ((ptr)->sun_len-2)
+#elif !defined(SUN_LEN)
+# define SUN_LEN(ptr) strlen((ptr)->sun_path)
 #endif
 
 #define ADDRESS_TO_JS(info, address_storage) \