diff --git a/source/rock/middle/Version.ooc b/source/rock/middle/Version.ooc
index d66a768e..26979dfa 100644
--- a/source/rock/middle/Version.ooc
+++ b/source/rock/middle/Version.ooc
@@ -63,9 +63,9 @@ builtinNames := HashMap<String, String> new()
     builtinNames put("haiku", 	"__HAIKU__")
     builtinNames put("apple", 	"__APPLE__")
     builtinNames put("freebsd",		"__FreeBSD__")
-    builtinNames put("openbsd",		"__OpenBSD__")
-    builtinNames put("netbsd",		"__NetBSD__")
-    builtinNames put("dragonfly",	"__DragonFlyBSD__")
+    builtinNames put("openbsd",		"__OpenBSD__") // TODO: Verify name of __OpenBSD__ macro
+    builtinNames put("netbsd",		"__NetBSD__") // TODO: Verify name of __NetBSD__ macro
+    builtinNames put("dragonfly",	"__DragonFlyBSD__") // TODO: Verify name of __DragonFlyBSD__ macro
     builtinNames put("gnuc", 	"__GNUC__")
     builtinNames put("i386", 	"__i386__")
     builtinNames put("x86", 		"__X86__")