diff --git a/library/include/mobilisis/tariff_timebase.h b/library/include/mobilisis/tariff_timebase.h
index 55b73a8..5c417a6 100644
--- a/library/include/mobilisis/tariff_timebase.h
+++ b/library/include/mobilisis/tariff_timebase.h
@@ -9,6 +9,7 @@ struct ATBTimeBase {
     enum class TimeBaseType {ABSOLUTE=0, RELATIVE=1};
 
     ATBTimeBase() = default;
+    int tbase_id;
     TimeBaseType tbase_type;
     QString tbase_label;
 
@@ -18,6 +19,7 @@ struct ATBTimeBase {
         switch(timeBase.tbase_type) {
         case ATBTimeBase::TimeBaseType::ABSOLUTE:
             debug.nospace()
+                << "   tbase_id: " << timeBase.tbase_id << "\n"
                 << " tbase_type: " << "TimeBaseType::ABSOLUTE" << "\n"
                 << "tbase_label: " << timeBase.tbase_label << "\n";
             break;