diff --git a/build/build.go b/build/build.go
index 34de8a4..796e36c 100644
--- a/build/build.go
+++ b/build/build.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package build
+package build // import "golang.org/x/benchmarks/build"
 
 import (
 	"log"
diff --git a/driver/driver.go b/driver/driver.go
index 6abb6be..b42b1d6 100644
--- a/driver/driver.go
+++ b/driver/driver.go
@@ -11,7 +11,7 @@
 // func(N uint64), similar to standard testing benchmarks. The rest is handled
 // by the driver.
 
-package driver
+package driver // import "golang.org/x/benchmarks/driver"
 
 import (
 	"bytes"
diff --git a/garbage/garbage.go b/garbage/garbage.go
index 6bd0019..fd0db1c 100644
--- a/garbage/garbage.go
+++ b/garbage/garbage.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package garbage
+package garbage // import "golang.org/x/benchmarks/garbage"
 
 import (
 	"fmt"
diff --git a/http/http.go b/http/http.go
index b013f4e..8ae610e 100644
--- a/http/http.go
+++ b/http/http.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package http
+package http // import "golang.org/x/benchmarks/http"
 
 import (
 	"fmt"
diff --git a/json/json.go b/json/json.go
index 2df233a..937910f 100644
--- a/json/json.go
+++ b/json/json.go
@@ -5,7 +5,7 @@
 // JSON benchmark marshals and unmarshals ~2MB json string
 // with a tree-like object hierarchy, in 4*GOMAXPROCS goroutines.
 
-package json
+package json // import "golang.org/x/benchmarks/json"
 
 import (
 	"bytes"