diff --git a/test/README.md b/test/README.md
index 068dc1b22b..432d36b653 100644
--- a/test/README.md
+++ b/test/README.md
@@ -6,6 +6,10 @@ To run just these tests, execute:
 
     ../bin/go run run.go
 
+To run just tests from specified files in this directory, execute:
+
+    ../bin/go run run.go -- file1.go file2.go ...
+
 Standard library tests should be written as regular Go tests in the appropriate package.
 
 The tool chain and runtime also have regular Go tests in their packages.