diff --git a/src/system/libroot/posix/user_group_common.cpp b/src/system/libroot/posix/user_group_common.cpp
index cf2a59235a..4de8deafc8 100644
--- a/src/system/libroot/posix/user_group_common.cpp
+++ b/src/system/libroot/posix/user_group_common.cpp
@@ -73,7 +73,7 @@ BPrivate::send_authentication_request_to_registrar(KMessage& request,
 }
 
 
-class Tokenizer {
+class BPrivate::Tokenizer {
 public:
 	Tokenizer(char* string)
 		: fString(string)