diff --git a/firmware/controllers/flash_main.cpp b/firmware/controllers/flash_main.cpp
index a406e5cdf2..6c1d97f26a 100644
--- a/firmware/controllers/flash_main.cpp
+++ b/firmware/controllers/flash_main.cpp
@@ -76,8 +76,6 @@ void writeToFlashIfPending() {
 	writeToFlashNow();
 }
 
-extern uint32_t maxLockTime;
-
 void writeToFlashNow(void) {
 	scheduleMsg(logger, " !!!!!!!!!!!!!!!!!!!! BE SURE NOT WRITE WITH IGNITION ON !!!!!!!!!!!!!!!!!!!!");
 	persistentState.size = PERSISTENT_SIZE;
@@ -99,7 +97,6 @@ void writeToFlashNow(void) {
 		scheduleMsg(logger, "Flashing failed");
 	}
 	assertEngineReference(PASS_ENGINE_PARAMETER_SIGNATURE);
-	maxLockTime = 0;
 	resetMaxValues();
 }
 
diff --git a/firmware/development/engine_sniffer.cpp b/firmware/development/engine_sniffer.cpp
index 87b8e67756..2883055b56 100644
--- a/firmware/development/engine_sniffer.cpp
+++ b/firmware/development/engine_sniffer.cpp
@@ -44,7 +44,7 @@ static histogram_s engineSnifferHisto;
 
 EXTERN_ENGINE
 ;
-extern uint32_t maxLockTime;
+extern uint32_t maxLockedDuration;
 
 /**
  * This is the number of events in the digital chart which would be displayed
@@ -114,7 +114,7 @@ static void printStatus(void) {
 static void setChartActive(int value) {
 	engineConfiguration->isEngineChartEnabled = value;
 	printStatus();
-	maxLockTime = 0;
+	maxLockedDuration = 0;
 }
 
 void setChartSize(int newSize) {