diff --git a/src/User/Hydrator/UserHydrator.php b/src/User/Hydrator/UserHydrator.php
index 993517fa..7e0d16d2 100644
--- a/src/User/Hydrator/UserHydrator.php
+++ b/src/User/Hydrator/UserHydrator.php
@@ -58,7 +58,7 @@ classes: $user->getClasses(),
             lastLogin: $user->getLastLogin(),
             memorizeTabs: $user->getMemorizeTabs(),
             parentId: $user->getParentId(),
-            permissions: $user->getPermissions(),
+            permissions: $this->sanitizePermissions($user->getPermissions()),
             roles: $user->getRoles(),
             twoFactorAuthenticationEnabled:
                 $user->getTwoFactorAuthentication('enabled') || $user->getTwoFactorAuthentication('secret'),
@@ -108,4 +108,11 @@ private function getContentLanguages(UserInterface $user): array
 
         return explode(',', $contentLanguagesString);
     }
+
+    // In some cases, the permissions array contains and array with empty strings as values
+    // This method removes those empty strings
+    private function sanitizePermissions(array $permissions): array
+    {
+        return array_filter($permissions, fn ($permission) => $permission !== '');
+    }
 }