diff --git a/reactos/include/psdk/rpcndr.h b/reactos/include/psdk/rpcndr.h
index 9691dba9ecd..0164200b98a 100644
--- a/reactos/include/psdk/rpcndr.h
+++ b/reactos/include/psdk/rpcndr.h
@@ -128,7 +128,7 @@ typedef unsigned char boolean;
    (RpcExceptionCode() == RPC_X_BAD_STUB_DATA) || \
    (RpcExceptionCode() == RPC_S_INVALID_BOUND))
 
-typedef struct
+typedef struct tagNDR_SCONTEXT
 {
   void *pad[2];
   void *userContext;