diff --git a/hscontrol/types/users.go b/hscontrol/types/users.go
index 471cb1e5..a509ed8e 100644
--- a/hscontrol/types/users.go
+++ b/hscontrol/types/users.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/mail"
-	"net/url"
 	"strconv"
 	"strings"
 
@@ -195,12 +194,9 @@ type OIDCClaims struct {
 }
 
 func (c *OIDCClaims) Identifier() string {
-	if strings.HasPrefix(c.Iss, "http") {
-		if i, err := url.JoinPath(c.Iss, c.Sub); err == nil {
-			return i
-		}
-	}
-	return c.Iss + "/" + c.Sub
+	trimmedIss := strings.TrimRight(c.Iss, "/")
+	trimmedSub := strings.TrimLeft(c.Sub, "/")
+	return trimmedIss + "/" + trimmedSub
 }
 
 type OIDCUserInfo struct {