diff --git a/third_party/code.google.com/p/rsc/fuse/fuse_test.go b/third_party/code.google.com/p/rsc/fuse/fuse_test.go
index b2e25b9ac..bec896fe1 100644
--- a/third_party/code.google.com/p/rsc/fuse/fuse_test.go
+++ b/third_party/code.google.com/p/rsc/fuse/fuse_test.go
@@ -5,6 +5,7 @@
 package fuse
 
 import (
+	"flag"
 	"fmt"
 	"io/ioutil"
 	"log"
@@ -15,6 +16,8 @@ import (
 	"time"
 )
 
+var fuseRun = flag.String("fuserun", "", "which fuse test to run. runs all if empty.")
+
 // umount tries its best to unmount dir.
 func umount(dir string) {
 	err := exec.Command("umount", dir).Run()
@@ -53,8 +56,10 @@ func TestFuse(t *testing.T) {
 	}
 
 	for _, tt := range fuseTests {
-		t.Logf("running %T", tt.node)
-		tt.node.test(dir+"/"+tt.name, t)
+		if *fuseRun == "" || *fuseRun == tt.name {
+			t.Logf("running %T", tt.node)
+			tt.node.test(dir+"/"+tt.name, t)
+		}
 	}
 }