diff --git a/firmware/controllers/algo/defaults/default_base_engine.cpp b/firmware/controllers/algo/defaults/default_base_engine.cpp
index 70f88d38eb..ace5c8a036 100644
--- a/firmware/controllers/algo/defaults/default_base_engine.cpp
+++ b/firmware/controllers/algo/defaults/default_base_engine.cpp
@@ -3,6 +3,7 @@
 #include "defaults.h"
 #include "vr_pwm.h"
 #include "kline.h"
+#include <rusefi/manifest.h>
 #if HW_PROTEUS
 #include "proteus_meta.h"
 #endif // HW_PROTEUS
@@ -69,6 +70,9 @@ void setDefaultBaseEngine() {
 
   setDefaultHPFP();
 
+  // it's useful to know what starting point is given tune based on
+  engineConfiguration->calibrationBirthday = compilationYear() * 10000 + compilationMonth() * 100 + compilationDay();
+
   engineConfiguration->enableExtendedCanBroadcast = true;
 
   engineConfiguration->fan1ExtraIdle = 2;