diff --git a/lib/curl_des.c b/lib/curl_des.c
index f90c2da60..62f7f6008 100644
--- a/lib/curl_des.c
+++ b/lib/curl_des.c
@@ -60,4 +60,4 @@ void Curl_des_set_odd_parity(unsigned char *bytes, size_t len)
   }
 }
 
-#endif /* USE_NTLM && (!USE_OPENSSL || HAVE_BORINGSSL) */
+#endif /* USE_NTLM && !HAVE_DES_SET_ODD_PARITY */
diff --git a/lib/curl_des.h b/lib/curl_des.h
index b855db4c1..a6e86f861 100644
--- a/lib/curl_des.h
+++ b/lib/curl_des.h
@@ -29,6 +29,6 @@
 /* Applies odd parity to the given byte array */
 void Curl_des_set_odd_parity(unsigned char *bytes, size_t length);
 
-#endif /* USE_NTLM && (!USE_OPENSSL || HAVE_BORINGSSL) */
+#endif /* USE_NTLM && !HAVE_DES_SET_ODD_PARITY */
 
 #endif /* HEADER_CURL_DES_H */