diff --git a/apps/user_ldap/lib/connection.php b/apps/user_ldap/lib/connection.php
index 97bb13c5f7..addd7d0b51 100644
--- a/apps/user_ldap/lib/connection.php
+++ b/apps/user_ldap/lib/connection.php
@@ -206,7 +206,7 @@ class Connection extends LDAPUtility {
 		}
 		$key = $this->getCacheKey($key);
 
-		return json_decode(base64_decode($this->cache->get($key)));
+		return json_decode(base64_decode($this->cache->get($key)), true);
 	}
 
 	/**