fix typo in comment
diff --git a/openstack/networking/v2/extensions/security/groups/requests.go b/openstack/networking/v2/extensions/security/groups/requests.go
index 3b4bc2f..b55fb5d 100644
--- a/openstack/networking/v2/extensions/security/groups/requests.go
+++ b/openstack/networking/v2/extensions/security/groups/requests.go
@@ -92,7 +92,7 @@
 	return res
 }
 
-// IDFromName is a convienience function that returns a security group's ID given its name.
+// IDFromName is a convenience function that returns a security group's ID given its name.
 func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
 	securityGroupCount := 0
 	securityGroupID := ""