diff --git a/tests/t-rsa-testparm.c b/tests/t-rsa-testparm.c
index 65617855..d62d9abf 100644
--- a/tests/t-rsa-testparm.c
+++ b/tests/t-rsa-testparm.c
@@ -1,130 +1,130 @@
 /* t-rsa-testparm.c - Check the RSA Key Generation test-parm parameter
  * Copyright (C) 2022 g10 Code GmbH
  *
  * This file is part of Libgcrypt.
  *
  * Libgcrypt is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * Libgcrypt is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public License
  * along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <gcrypt.h>
 
 #include "stopwatch.h"
 
 #define PGM "t-rsa-testparm"
 #include "t-common.h"
 
 
 static void
-check_rsa_testparm ()
+check_rsa_testparm (void)
 {
   gpg_error_t err;
   gcry_sexp_t keyspec = NULL;
   gcry_sexp_t key = NULL;
   const char *sexp = "(genkey (rsa (nbits \"2048\") (test-parms "
     "(e \"65537\")"
     "(p #00bbccabcee15d343944a47e492d4b1f4de79633e20cbb46f7d2d6813392a807ad048"
         "cf77528edd19f77e7453f25173b9dcb70423afa2037aae147b81a33d541fc58f875ef"
         "f1e852ab55e2e09a3debfbc151b3b0d17fef6f74d81fca14fbae531418e211ef81859"
         "2af70de5cec3b92795cc3578572bf456099cd8727150e523261#)"
     "(q #00ca87ecf2883f4ed00a9ec65abdeba81d28edbfcc34ecc563d587f166b52d42bfbe2"
         "2bbc095b0b8426a2f8bbc55baaa8859b42cbc376ed3067db3ef7b135b63481322911e"
         "bbd7014db83aa051e0ca2dbf302b75cd37f2ae8df90e134226e92f6353a284b28bb30"
         "af0bbf925b345b955328379866ebac11d55bc80fe84f105d415#)"
     ")))";
 
   info ("Checking RSA KeyGen test-parm parameter.\n");
 
   err = gcry_sexp_build (&keyspec, NULL, sexp);
   if (err)
     {
       fail ("error building SEXP for test: %s", gpg_strerror (err));
       goto leave;
     }
 
   err = gcry_pk_genkey (&key, keyspec);
   if (err)
     {
       fail ("gcry_pk_genkey failed for test: %s", gpg_strerror (err));
       goto leave;
     }
 
 leave:
   if (key)
     gcry_sexp_release (key);
   if (keyspec)
     gcry_sexp_release (keyspec);
 }
 
 
 int
 main (int argc, char **argv)
 {
   int last_argc = -1;
 
   if (argc)
     { argc--; argv++; }
 
   while (argc && last_argc != argc )
     {
       last_argc = argc;
       if (!strcmp (*argv, "--"))
         {
           argc--; argv++;
           break;
         }
       else if (!strcmp (*argv, "--help"))
         {
           fputs ("usage: " PGM " [options]\n"
                  "Options:\n"
                  "  --verbose       print timings etc.\n"
                  "  --debug         flyswatter\n",
                  stdout);
           exit (0);
         }
       else if (!strcmp (*argv, "--verbose"))
         {
           verbose++;
           argc--; argv++;
         }
       else if (!strcmp (*argv, "--debug"))
         {
           verbose += 2;
           debug++;
           argc--; argv++;
         }
       else if (!strncmp (*argv, "--", 2))
         die ("unknown option '%s'", *argv);
 
     }
 
   xgcry_control ((GCRYCTL_DISABLE_SECMEM, 0));
   if (!gcry_check_version (GCRYPT_VERSION))
     die ("version mismatch\n");
   if (debug)
     xgcry_control ((GCRYCTL_SET_DEBUG_FLAGS, 0xffffffff, 0));
 
   start_timer ();
   check_rsa_testparm ();
   stop_timer ();
 
   info ("All tests completed in %s.  Errors: %d\n",
         elapsed_time (1), error_count);
   return !!error_count;
 }