diff --git a/t/nqp/19-file-ops.t b/t/nqp/19-file-ops.t
index 4a75c214bd..7b41c2199b 100644
--- a/t/nqp/19-file-ops.t
+++ b/t/nqp/19-file-ops.t
@@ -170,7 +170,9 @@ nqp::unlink($test-file ~ '-linked');
 my $tmp-file := "tmp";
 my $env := nqp::getenvhash();
 $env<NQP_SHELL_TEST_ENV_VAR> := "123foo";
-nqp::shell("echo %NQP_SHELL_TEST_ENV_VAR% > $tmp-file",nqp::cwd(),$env);
+nqp::shell("echo %NQP_SHELL_TEST_ENV_VAR% > $tmp-file",nqp::cwd(),$env, nqp::null(), nqp::null(), nqp::null(),
+    nqp::const::PIPE_INHERIT_IN + nqp::const::PIPE_INHERIT_OUT + nqp::const::PIPE_INHERIT_ERR
+);
 my $output := slurp($tmp-file);
 nqp::unlink($tmp-file);
 my $is-windows := $output ne "%NQP_SHELL_TEST_ENV_VAR%\n";
diff --git a/t/nqp/78-shell.t b/t/nqp/78-shell.t
index c4a0a31eed..ba871343c3 100644
--- a/t/nqp/78-shell.t
+++ b/t/nqp/78-shell.t
@@ -10,17 +10,20 @@ ok($a<foo> == 123,'nqp::getenvhash() is a fresh hash');
 ok($b<foo> == 456,'nqp::getenvhash() is a fresh hash');
 
 my $tmp-file := "tmp";
-nqp::shell("echo Hello > $tmp-file",nqp::cwd(),nqp::getenvhash());
+nqp::shell("echo Hello > $tmp-file",nqp::cwd(),nqp::getenvhash(), nqp::null(), nqp::null(), nqp::null(),
+    nqp::const::PIPE_INHERIT_IN + nqp::const::PIPE_INHERIT_OUT + nqp::const::PIPE_INHERIT_ERR);
 my $output := slurp($tmp-file);
 ok($output ~~ /^Hello/,'nqp::shell works with the echo shell command');
 
 my $env := nqp::getenvhash();
 $env<NQP_SHELL_TEST_ENV_VAR> := "123foo";
 
-nqp::shell("echo %NQP_SHELL_TEST_ENV_VAR% > $tmp-file",nqp::cwd(),$env);
+nqp::shell("echo %NQP_SHELL_TEST_ENV_VAR% > $tmp-file",nqp::cwd(),$env, nqp::null(), nqp::null(), nqp::null(),
+    nqp::const::PIPE_INHERIT_IN + nqp::const::PIPE_INHERIT_OUT + nqp::const::PIPE_INHERIT_ERR);
 $output := slurp($tmp-file);
 if $output eq "%NQP_SHELL_TEST_ENV_VAR%\n" {
-    nqp::shell("echo \$NQP_SHELL_TEST_ENV_VAR > $tmp-file",nqp::cwd(),$env);
+    nqp::shell("echo \$NQP_SHELL_TEST_ENV_VAR > $tmp-file",nqp::cwd(),$env, nqp::null(), nqp::null(), nqp::null(),
+        nqp::const::PIPE_INHERIT_IN + nqp::const::PIPE_INHERIT_OUT + nqp::const::PIPE_INHERIT_ERR);
     my $output := slurp($tmp-file);
     ok($output eq "123foo\n","passing env variables to child processes works linux");
 } else {