diff --git a/src/include/openssl/pkcs7.h b/src/include/openssl/pkcs7.h
index 52b649c..cb6155f 100644
--- a/src/include/openssl/pkcs7.h
+++ b/src/include/openssl/pkcs7.h
@@ -199,11 +199,11 @@
 }  // extern C
 
 extern "C++" {
-namespace bssl {
+BSSL_NAMESPACE_BEGIN
 
 BORINGSSL_MAKE_DELETER(PKCS7, PKCS7_free)
 
-}  // namespace bssl
+BSSL_NAMESPACE_END
 }  // extern C++
 #endif