diff --git a/testsuite/rsa-encrypt-test.c b/testsuite/rsa-encrypt-test.c
index ecdbdb6b3b48c0c3ec58bb585079c8aba9bef080..d20dee9127e69934744d5615a5b61fba86f3b4d5 100644
--- a/testsuite/rsa-encrypt-test.c
+++ b/testsuite/rsa-encrypt-test.c
@@ -39,7 +39,6 @@ test_main(void)
 
   if (verbose)
     {
-      /* In which GMP version was gmp_fprintf introduced? */
       fprintf(stderr, "encrypted: ");
       mpz_out_str(stderr, 10, gibberish);
     }