diff --git a/dlls/wined3d/buffer.c b/dlls/wined3d/buffer.c
index 3f4552f2bb..c985f63ef8 100644
--- a/dlls/wined3d/buffer.c
+++ b/dlls/wined3d/buffer.c
@@ -1417,16 +1417,31 @@ HRESULT CDECL wined3d_buffer_create(struct wined3d_device *device, const struct
         struct wined3d_buffer **buffer)
 {
     struct wined3d_buffer *object;
+    unsigned int access;
+    char *small_buffers_hack_env;
+    BOOL small_buffers_hack_enabled = FALSE;
     HRESULT hr;

+    if ((small_buffers_hack_env = getenv("SMALL_BUFFERS_HACK")) && *small_buffers_hack_env == '1')
+    {
+       small_buffers_hack_enabled = TRUE;
+    }
+
     TRACE("device %p, desc %p, data %p, parent %p, parent_ops %p, buffer %p.\n",
             device, desc, data, parent, parent_ops, buffer);

     if (!(object = heap_alloc_zero(sizeof(*object))))
         return E_OUTOFMEMORY;

+    if (!small_buffers_hack_enabled || desc->byte_width > 1024 * 1024)
+       access = desc->access;
+    else {
+        FIXME("Overriding buffer access flags. byte_width: %d flags: %#x buffer: %p.\n", desc->byte_width, desc->access, object);
+        access = WINED3D_RESOURCE_ACCESS_GPU | WINED3D_RESOURCE_ACCESS_CPU | WINED3D_RESOURCE_ACCESS_MAP_R | WINED3D_RESOURCE_ACCESS_MAP_W;
+    }
+
     if (FAILED(hr = buffer_init(object, device, desc->byte_width, desc->usage, WINED3DFMT_UNKNOWN,
-            desc->access, desc->bind_flags, data, parent, parent_ops)))
+            access, desc->bind_flags, data, parent, parent_ops)))
     {
         WARN("Failed to initialize buffer, hr %#x.\n", hr);
         heap_free(object);