t/httpd-https.t    | 2 +-
 t/nntpd-tls.t      | 2 +-
 t/nntpd-validate.t | 2 +-

diff --git a/t/httpd-https.t b/t/httpd-https.t
index 410ae658325596196128326ddee7d435dd207fbc..22c62bf412034efce62cacb6a6e269ebb24be5c3 100644
--- a/t/httpd-https.t
+++ b/t/httpd-https.t
@@ -14,7 +14,7 @@ my $cert = 'certs/server-cert.pem';
 my $key = 'certs/server-key.pem';
 unless (-r $key && -r $cert) {
 	plan skip_all =>
-		"certs/ missing for $0, run ./create-certs.perl in certs/";
+		"certs/ missing for $0, run $^X ./create-certs.perl in certs/";
 }
 use_ok 'PublicInbox::TLS';
 use_ok 'IO::Socket::SSL';
diff --git a/t/nntpd-tls.t b/t/nntpd-tls.t
index e961965bfc0b5a12ec2a173ad8199a9be91ec221..1a74924c81a60ea9997c430a35074be90fdc7674 100644
--- a/t/nntpd-tls.t
+++ b/t/nntpd-tls.t
@@ -20,7 +20,7 @@ my $cert = 'certs/server-cert.pem';
 my $key = 'certs/server-key.pem';
 unless (-r $key && -r $cert) {
 	plan skip_all =>
-		"certs/ missing for $0, run ./create-certs.perl in certs/";
+		"certs/ missing for $0, run $^X ./create-certs.perl in certs/";
 }
 
 use_ok 'PublicInbox::TLS';
diff --git a/t/nntpd-validate.t b/t/nntpd-validate.t
index 532ef7293320a1e86412944f31d92e2cb98d45f0..87829b03e4dfa2461427f014059acdf7662bf92e 100644
--- a/t/nntpd-validate.t
+++ b/t/nntpd-validate.t
@@ -32,7 +32,7 @@ my $test_tls = $ENV{TEST_SKIP_TLS} ? 0 : eval { require IO::Socket::SSL };
 my $cert = 'certs/server-cert.pem';
 my $key = 'certs/server-key.pem';
 if ($test_tls && !-r $key || !-r $cert) {
-	plan skip_all => "certs/ missing for $0, run ./certs/create-certs.perl";
+	plan skip_all => "certs/ missing for $0, run $^X ./certs/create-certs.perl";
 }
 require './t/common.perl';
 my $keep_tmp = !!$ENV{TEST_KEEP_TMP};