diff --git a/libc/private/ErrnoRestorer.h b/libc/private/ErrnoRestorer.h
index f467393..52e115a 100644
--- a/libc/private/ErrnoRestorer.h
+++ b/libc/private/ErrnoRestorer.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ERRNO_RESTORER_H
-#define ERRNO_RESTORER_H
+#pragma once
 
 #include <errno.h>
 
@@ -37,7 +36,5 @@
  private:
   int saved_errno_;
 
-  DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
+  BIONIC_DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
 };
-
-#endif // ERRNO_RESTORER_H