diff --git a/tests/star/README b/tests/star/README
index 3d787be5..c72b86a4 100644
--- a/tests/star/README
+++ b/tests/star/README
@@ -6,7 +6,7 @@ The tests are ignored unless environment variable STAR_TESTSCRIPTS
 is set and points to the directory where the test archives reside.
 Sample usage:
 
-	make STAR_TESTSCRIPTS=testdir check
+	make TESTS_ENVIRONMENT='STAR_TESTSCRIPTS=testdir' check
 
 The following is a short description of the tests: