diff --git a/reactos/subsystems/win32/csrss/csrsrv/init.c b/reactos/subsystems/win32/csrss/csrsrv/init.c
index d700219bc05..fa8d6273765 100644
--- a/reactos/subsystems/win32/csrss/csrsrv/init.c
+++ b/reactos/subsystems/win32/csrss/csrsrv/init.c
@@ -107,7 +107,7 @@ InitializeVideoAddressSpace(VOID)
                                      &BaseAddress,
                                      0,
                                      &ViewSize,
-                                     MEM_COMMIT,
+                                     MEM_RESERVE | MEM_COMMIT,
                                      PAGE_EXECUTE_READWRITE);
     if (!NT_SUCCESS(Status))
     {