diff --git a/dlls/rpcrt4/rpc_server.c b/dlls/rpcrt4/rpc_server.c
index 8e7fe0e59a5..9fd4cf6696b 100644
--- a/dlls/rpcrt4/rpc_server.c
+++ b/dlls/rpcrt4/rpc_server.c
@@ -1621,6 +1621,15 @@ RPC_STATUS WINAPI RpcMgmtIsServerListening(RPC_BINDING_HANDLE Binding)
   return RPC_S_INVALID_BINDING;
 }
 
+/***********************************************************************
+ *             RpcMgmtSetAuthorizationFn (RPCRT4.@)
+ */
+RPC_STATUS WINAPI RpcMgmtSetAuthorizationFn(RPC_MGMT_AUTHORIZATION_FN fn)
+{
+  FIXME("(%p): stub\n", fn);
+  return RPC_S_OK;
+}
+
 /***********************************************************************
  *             RpcMgmtSetServerStackSize (RPCRT4.@)
  */
diff --git a/dlls/rpcrt4/rpcrt4.spec b/dlls/rpcrt4/rpcrt4.spec
index e0c6c11127f..aa6fef9343f 100644
--- a/dlls/rpcrt4/rpcrt4.spec
+++ b/dlls/rpcrt4/rpcrt4.spec
@@ -402,7 +402,7 @@
 @ stub RpcMgmtInqServerPrincNameW
 @ stdcall RpcMgmtInqStats(ptr ptr)
 @ stdcall RpcMgmtIsServerListening(ptr)
-@ stub RpcMgmtSetAuthorizationFn
+@ stdcall RpcMgmtSetAuthorizationFn(ptr)
 @ stdcall RpcMgmtSetCancelTimeout(long)
 @ stdcall RpcMgmtSetComTimeout(ptr long)
 @ stdcall RpcMgmtSetServerStackSize(long)
diff --git a/include/rpcdce.h b/include/rpcdce.h
index dc2c8deae72..9507a82a202 100644
--- a/include/rpcdce.h
+++ b/include/rpcdce.h
@@ -393,6 +393,10 @@ RPCRTAPI RPC_STATUS RPC_ENTRY
 RPCRTAPI RPC_STATUS RPC_ENTRY
   RpcMgmtEnableIdleCleanup( void );
 
+typedef int (__RPC_API *RPC_MGMT_AUTHORIZATION_FN)( RPC_BINDING_HANDLE, ULONG, RPC_STATUS * );
+
+RPCRTAPI RPC_STATUS RPC_ENTRY RpcMgmtSetAuthorizationFn( RPC_MGMT_AUTHORIZATION_FN );
+
 RPCRTAPI RPC_STATUS RPC_ENTRY RpcMgmtSetCancelTimeout(LONG);
 
 RPCRTAPI RPC_STATUS RPC_ENTRY