diff --git a/firmware/controllers/trigger/trigger_central.cpp b/firmware/controllers/trigger/trigger_central.cpp
index 5923bb05b0..831d298031 100644
--- a/firmware/controllers/trigger/trigger_central.cpp
+++ b/firmware/controllers/trigger/trigger_central.cpp
@@ -80,6 +80,9 @@ uint32_t triggerMaxDuration = 0;
 
 static bool isInsideTriggerHandler = false;
 
+/**
+ * true if most recent configuration change has changed any of the trigger settings
+ */
 static bool isTriggerConfigChanged = false;
 
 efitick_t previousVvtCamTime = 0;
@@ -565,16 +568,18 @@ void onConfigurationChangeTriggerCallback(engine_configuration_s *previousConfig
 		COMPARE_CONFIG_PARAMS(bc.nb2ratioFrom) ||
 		COMPARE_CONFIG_PARAMS(bc.nb2ratioTo) ||
 		COMPARE_CONFIG_PARAMS(nbVvtIndex);
-	isTriggerConfigChanged = true;
 #endif /* EFI_PROD_CODE */
 }
 
+/**
+ * @returns true if configuration just changed, and if that change has affected trigger
+ */
 bool checkIfTriggerConfigChanged(void) {
-//#if EFI_PROD_CODE || EFI_SIMULATOR || defined(__DOXYGEN__)
-//	return isTriggerConfigChanged;
-//#else
+#if EFI_PROD_CODE || EFI_SIMULATOR || defined(__DOXYGEN__)
+	return triggerVersion.isOld() && isTriggerConfigChanged;
+#else
 	return triggerVersion.isOld();
-//#endif /* EFI_PROD_CODE */
+#endif /* EFI_PROD_CODE */
 }
 
 void initTriggerCentral(Logging *sharedLogger) {