diff --git a/lib/curlx/base64.c b/lib/curlx/base64.c
index 92ebc57e1e..dc6e9c001c 100644
--- a/lib/curlx/base64.c
+++ b/lib/curlx/base64.c
@@ -26,13 +26,6 @@
 
 #include "../curl_setup.h"
 
-#if !defined(CURL_DISABLE_HTTP_AUTH) || defined(USE_SSH) || \
-  !defined(CURL_DISABLE_LDAP) || \
-  !defined(CURL_DISABLE_SMTP) || \
-  !defined(CURL_DISABLE_POP3) || \
-  !defined(CURL_DISABLE_IMAP) || \
-  !defined(CURL_DISABLE_DIGEST_AUTH) || \
-  !defined(CURL_DISABLE_DOH) || defined(USE_SSL) || !defined(BUILDING_LIBCURL)
 #include <curl/curl.h>
 #include "warnless.h"
 #include "base64.h"
@@ -281,5 +274,3 @@ CURLcode curlx_base64url_encode(const char *inputbuff, size_t insize,
 {
   return base64_encode(base64url, 0, inputbuff, insize, outptr, outlen);
 }
-
-#endif /* no users so disabled */
diff --git a/scripts/singleuse.pl b/scripts/singleuse.pl
index b6ec18b47f..0251594b12 100755
--- a/scripts/singleuse.pl
+++ b/scripts/singleuse.pl
@@ -49,6 +49,9 @@ my %wl = (
     'Curl_creader_def_total_length' => 'internal api',
     'Curl_meta_reset' => 'internal api',
     'Curl_trc_dns' => 'internal api',
+    'curlx_base64_decode' => 'internal api',
+    'curlx_base64_encode' => 'internal api',
+    'curlx_base64url_encode' => 'internal api',
 );
 
 my %api = (