diff --git a/src/bin/pg_ctl/t/001_start_stop.pl b/src/bin/pg_ctl/t/001_start_stop.pl
index b1e419f02e9..c25c0793537 100644
--- a/src/bin/pg_ctl/t/001_start_stop.pl
+++ b/src/bin/pg_ctl/t/001_start_stop.pl
@@ -11,6 +11,8 @@ use Test::More tests => 24;
 my $tempdir       = TestLib::tempdir;
 my $tempdir_short = TestLib::tempdir_short;
 
+$PostgresNode::use_tcp = 1;
+
 program_help_ok('pg_ctl');
 program_version_ok('pg_ctl');
 program_options_handling_ok('pg_ctl');