diff --git a/src/emsdevice.cpp b/src/emsdevice.cpp
index b6eec34b4..26c7a75cd 100644
--- a/src/emsdevice.cpp
+++ b/src/emsdevice.cpp
@@ -311,7 +311,7 @@ std::string EMSdevice::telegram_type_name(std::shared_ptr<const Telegram> telegr
     }
 
     for (const auto & tf : telegram_functions_) {
-        if ((tf.telegram_type_id_ == telegram->type_id) && ((telegram->type_id & 0xF0) != 0xF0)) {
+        if ((tf.telegram_type_id_ == telegram->type_id) && ((telegram->type_id & 0xFFF0) != 0xF0)) {
             return uuid::read_flash_string(tf.telegram_type_name_);
         }
     }