diff --git a/src/http/modules/ngx_http_dav_module.c b/src/http/modules/ngx_http_dav_module.c
index 2d555c5..b532135 100644
--- a/src/http/modules/ngx_http_dav_module.c
+++ b/src/http/modules/ngx_http_dav_module.c
@@ -799,9 +799,6 @@
     u_char                   *p, *dir;
     size_t                    len;
     ngx_http_dav_copy_ctx_t  *copy;
-#if (WIN32)
-    ngx_fd_t                  fd;
-#endif
 
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
                    "http copy dir time: \"%s\"", path->data);
@@ -821,7 +818,9 @@
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
                    "http copy dir time to: \"%s\"", dir);
 
-#if (WIN32)
+#if (NGX_WIN32)
+    {
+    ngx_fd_t  fd;
 
     fd = ngx_open_file(dir, NGX_FILE_RDWR, NGX_FILE_OPEN, 0);
 
@@ -839,6 +838,7 @@
         ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
                       ngx_close_file_n " \"%s\" failed", dir);
     }
+    }
 
 failed: