diff --git a/openstack/common/extensions/requests.go b/openstack/common/extensions/requests.go
index 8b3f0d2..ed5ea4b 100644
--- a/openstack/common/extensions/requests.go
+++ b/openstack/common/extensions/requests.go
@@ -9,7 +9,7 @@
 // Get retrieves information for a specific extension using its alias.
 func Get(c *gophercloud.ServiceClient, alias string) GetResult {
 	var res GetResult
-	_, err := perigee.Request("GET", extensionURL(c, alias), perigee.Options{
+	_, err := perigee.Request("GET", ExtensionURL(c, alias), perigee.Options{
 		MoreHeaders: c.Provider.AuthenticatedHeaders(),
 		Results:     &res.Resp,
 		OkCodes:     []int{200},
@@ -21,7 +21,7 @@
 // List returns a Pager which allows you to iterate over the full collection of extensions.
 // It does not accept query parameters.
 func List(c *gophercloud.ServiceClient) pagination.Pager {
-	return pagination.NewPager(c, listExtensionURL(c), func(r pagination.LastHTTPResponse) pagination.Page {
+	return pagination.NewPager(c, ListExtensionURL(c), func(r pagination.LastHTTPResponse) pagination.Page {
 		return ExtensionPage{pagination.SinglePageBase(r)}
 	})
 }
diff --git a/openstack/common/extensions/urls.go b/openstack/common/extensions/urls.go
index 2d9a563..6460c66 100644
--- a/openstack/common/extensions/urls.go
+++ b/openstack/common/extensions/urls.go
@@ -2,10 +2,12 @@
 
 import "github.com/rackspace/gophercloud"
 
-func extensionURL(c *gophercloud.ServiceClient, name string) string {
+// ExtensionURL generates the URL for an extension resource by name.
+func ExtensionURL(c *gophercloud.ServiceClient, name string) string {
 	return c.ServiceURL("extensions", name)
 }
 
-func listExtensionURL(c *gophercloud.ServiceClient) string {
+// ListExtensionURL generates the URL for the extensions resource collection.
+func ListExtensionURL(c *gophercloud.ServiceClient) string {
 	return c.ServiceURL("extensions")
 }
diff --git a/openstack/common/extensions/urls_test.go b/openstack/common/extensions/urls_test.go
index 94c36cc..3223b1c 100644
--- a/openstack/common/extensions/urls_test.go
+++ b/openstack/common/extensions/urls_test.go
@@ -14,13 +14,13 @@
 }
 
 func TestExtensionURL(t *testing.T) {
-	actual := extensionURL(endpointClient(), "agent")
+	actual := ExtensionURL(endpointClient(), "agent")
 	expected := endpoint + "extensions/agent"
 	th.AssertEquals(t, expected, actual)
 }
 
 func TestListExtensionURL(t *testing.T) {
-	actual := listExtensionURL(endpointClient())
+	actual := ListExtensionURL(endpointClient())
 	expected := endpoint + "extensions"
 	th.AssertEquals(t, expected, actual)
 }