diff --git a/CHANGES.md b/CHANGES.md
index 5dabae74b..dcdea4cc8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -55,6 +55,7 @@
 - Fix problem with slashes in layers names for exporter [#3276](https://github.com/penpot/penpot/issues/3276)
 - Fix incorrect modified data on moving files on dashboard [Taiga #5530](https://tree.taiga.io/project/penpot/issue/5530)
 - Fix focus handling on comments edition [Taiga #5560](https://tree.taiga.io/project/penpot/issue/5560)
+- Fix incorrect fullname use on registring user after OIDC authentication [Taiga #5517](https://tree.taiga.io/project/penpot/issue/5517)
 
 ### :arrow_up: Deps updates
 
diff --git a/backend/src/app/rpc/commands/auth.clj b/backend/src/app/rpc/commands/auth.clj
index 7281cfed2..301826938 100644
--- a/backend/src/app/rpc/commands/auth.clj
+++ b/backend/src/app/rpc/commands/auth.clj
@@ -323,9 +323,9 @@
                 :extra-data ptoken})))
 
 (defn register-profile
-  [{:keys [::db/conn] :as cfg} {:keys [token] :as params}]
+  [{:keys [::db/conn] :as cfg} {:keys [token fullname] :as params}]
   (let [claims     (tokens/verify (::main/props cfg) {:token token :iss :prepared-register})
-        params     (merge params claims)
+        params     (assoc claims :fullname fullname)
 
         is-active  (or (:is-active params)
                        (not (contains? cf/flags :email-verification)))