diff --git a/reactos/dll/win32/ws2help/ws2help.h b/reactos/dll/win32/ws2help/ws2help.h
index 798e3a7530c..e7dc1a58507 100644
--- a/reactos/dll/win32/ws2help/ws2help.h
+++ b/reactos/dll/win32/ws2help/ws2help.h
@@ -16,9 +16,6 @@
 
 #define EXPORT STDCALL
 
-#define OBJ_NAME_PATH_SEPARATOR ((WCHAR)L'\\')
-
-
 #endif /* __WS2HELP_H */
 
 /* EOF */
diff --git a/reactos/dll/win32/wshirda/wshirda.h b/reactos/dll/win32/wshirda/wshirda.h
index 60ab3d6f81d..b4f8de66dd4 100644
--- a/reactos/dll/win32/wshirda/wshirda.h
+++ b/reactos/dll/win32/wshirda/wshirda.h
@@ -16,9 +16,6 @@
 
 #define EXPORT STDCALL
 
-#define OBJ_NAME_PATH_SEPARATOR ((WCHAR)L'\\')
-
-
 #endif /* __WSHIRDA_H */
 
 /* EOF */
diff --git a/reactos/drivers/network/wshtcpip/wshtcpip.h b/reactos/drivers/network/wshtcpip/wshtcpip.h
index 8aeaead4228..77a6fb41319 100644
--- a/reactos/drivers/network/wshtcpip/wshtcpip.h
+++ b/reactos/drivers/network/wshtcpip/wshtcpip.h
@@ -13,8 +13,6 @@
 
 #define EXPORT STDCALL
 
-#define OBJ_NAME_PATH_SEPARATOR ((WCHAR)L'\\')
-
 #define DD_TCP_DEVICE_NAME      L"\\Device\\Tcp"
 #define DD_UDP_DEVICE_NAME      L"\\Device\\Udp"
 #define DD_RAW_IP_DEVICE_NAME   L"\\Device\\RawIp"
diff --git a/reactos/include/ndk/obtypes.h b/reactos/include/ndk/obtypes.h
index 061d77341ca..e7f1c6e5797 100644
--- a/reactos/include/ndk/obtypes.h
+++ b/reactos/include/ndk/obtypes.h
@@ -57,6 +57,11 @@ Author:
 #define DIRECTORY_CREATE_SUBDIRECTORY           0x0008
 #define DIRECTORY_ALL_ACCESS                    (STANDARD_RIGHTS_REQUIRED | 0xF)
 
+//
+// Slash separator used in the OB Namespace (and Registry)
+//
+#define OBJ_NAME_PATH_SEPARATOR                 L'\\'
+
 #else
 
 //