diff --git a/openstack/compute/flavors/client.go b/openstack/compute/flavors/client.go
index 60c7cd1..2c64908 100644
--- a/openstack/compute/flavors/client.go
+++ b/openstack/compute/flavors/client.go
@@ -1,7 +1,10 @@
 package flavors
 
 import (
+	"fmt"
+	"net/url"
 	"github.com/rackspace/gophercloud/openstack/identity"
+	"strconv"
 )
 
 type Client struct {
@@ -18,8 +21,32 @@
 	}
 }
 
-func (c *Client) getListUrl() string {
-	return c.endpoint + "/flavors/detail"
+func (c *Client) getListUrl(lfo ListFilterOptions) string {
+	v := url.Values{}
+	if lfo.ChangesSince != "" {
+		v.Set("changes-since", lfo.ChangesSince)
+	}
+	if lfo.MinDisk != 0 {
+		v.Set("minDisk", strconv.Itoa(lfo.MinDisk))
+	}
+	if lfo.MinRam != 0 {
+		v.Set("minRam", strconv.Itoa(lfo.MinRam))
+	}
+	if lfo.Marker != "" {
+		v.Set("marker", lfo.Marker)
+	}
+	if lfo.Limit != 0 {
+		v.Set("limit", strconv.Itoa(lfo.Limit))
+	}
+	tail := ""
+	if len(v) > 0 {
+		tail = fmt.Sprintf("?%s", v.Encode())
+	}
+	return fmt.Sprintf("%s/flavors/detail%s", c.endpoint, tail)
+}
+
+func (c *Client) getGetUrl(id string) string {
+	return fmt.Sprintf("%s/flavors/%s", c.endpoint, id)
 }
 
 func (c *Client) getListHeaders() (map[string]string, error) {