diff --git a/testscript/script_test.go b/testscript/script_test.go
index 1ab2e776663983740822ad8806ede021fd64e648..1b61c9cc72f4038b174a7be5c59b26e97a2583b6 100644
--- a/testscript/script_test.go
+++ b/testscript/script_test.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"flag"
 	"fmt"
+	"os"
 	"path/filepath"
 	"testing"
 	"time"
@@ -23,6 +24,17 @@ func TestScript(t *testing.T) {
 		t.Fatal(err)
 	}
 
+	for _, f := range []string{
+		"admin1",
+		"admin2",
+		"user1",
+		"user2",
+	} {
+		if err := os.Chmod(filepath.Join("./testdata/", f), 0o600); err != nil {
+			t.Fatal(err)
+		}
+	}
+
 	testscript.Run(t, testscript.Params{
 		Dir:           "testdata/script",
 		UpdateScripts: *update,