diff --git a/firmware/controllers/system/timer/single_timer_executor.cpp b/firmware/controllers/system/timer/single_timer_executor.cpp
index 9b253aea4c..3275f33328 100644
--- a/firmware/controllers/system/timer/single_timer_executor.cpp
+++ b/firmware/controllers/system/timer/single_timer_executor.cpp
@@ -67,11 +67,12 @@ void SingleTimerExecutor::scheduleByTimestampNt(const char *msg, scheduling_s* s
 	ScopePerf perf(PE::SingleTimerExecutorScheduleByTimestamp);
 
 #if EFI_ENABLE_ASSERTS
-	int32_t deltaTimeNt = (int32_t)nt - getTimeNowLowerNt();
+	efitick_t deltaTimeNt = nt - getTimeNowLowerNt();
 
 	if (deltaTimeNt >= TOO_FAR_INTO_FUTURE_NT) {
 		// we are trying to set callback for too far into the future. This does not look right at all
-		firmwareError(CUSTOM_ERR_TASK_TIMER_OVERFLOW, "scheduleByTimestampNt() too far: %d %s", deltaTimeNt, msg);
+		int32_t intDeltaTimeNt = (int32_t)deltaTimeNt;
+		firmwareError(CUSTOM_ERR_TASK_TIMER_OVERFLOW, "scheduleByTimestampNt() too far: %d %s", intDeltaTimeNt, msg);
 		return;
 	}
 #endif