diff --git a/caldav/client.go b/caldav/client.go
index 1e80052..816d281 100644
--- a/caldav/client.go
+++ b/caldav/client.go
@@ -15,9 +15,10 @@ import (
 	"github.com/emersion/go-webdav/internal"
 )
 
+// Discover performs a DNS-based CalDAV service discovery as described in
+// RFC 6764 section 6. It returns the URL to the CalDAV server.
 func Discover(host string) (string, error) {
-	url, err := internal.Discover("caldav", host)
-	return url, err
+	return internal.Discover("caldav", host)
 }
 
 // Client provides access to a remote CalDAV server.
diff --git a/carddav/client.go b/carddav/client.go
index dccd9aa..d6cf939 100644
--- a/carddav/client.go
+++ b/carddav/client.go
@@ -15,9 +15,10 @@ import (
 	"github.com/emersion/go-webdav/internal"
 )
 
+// Discover performs a DNS-based CardDAV service discovery as described in
+// RFC 6764 section 6. It returns the URL to the CardDAV server.
 func Discover(host string) (string, error) {
-	url, err := internal.Discover("carddav", host)
-	return url, err
+	return internal.Discover("carddav", host)
 }
 
 // Client provides access to a remote CardDAV server.
diff --git a/internal/client.go b/internal/client.go
index 71375aa..f2002a0 100644
--- a/internal/client.go
+++ b/internal/client.go
@@ -14,8 +14,8 @@ import (
 	"unicode"
 )
 
-// Discover performs a DNS-based CalDAV/CardDAV service discovery as described in
-// RFC 6764 section 6. It returns the URL to the CalDAV/CardDAV server.
+// Discover performs a DNS-based CalDAV/CardDAV service discovery as described
+// in RFC 6764 section 6. It returns the URL to the CalDAV/CardDAV server.
 func Discover(service string, host string) (string, error) {
 	if service != "caldav" && service != "carddav" {
 		return "", fmt.Errorf("webdav: service discovery of type %v not supported", service)