diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h
index 06c22f5..b789d61 100644
--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -98,7 +98,7 @@
 #define ngx_delete_dir_n         "rmdir()"
 
 
-#define ngx_de_name(dir)         (dir)->de->d_name
+#define ngx_de_name(dir)         ((u_char *) (dir)->de->d_name)
 #if (NGX_FREEBSD)
 #define ngx_de_namelen(dir)      (dir)->de->d_namlen
 #else