diff --git a/src/components/stopwatch/StopWatchController.h b/src/components/stopwatch/StopWatchController.h
index 210cbeaac0..bcc9b5515c 100644
--- a/src/components/stopwatch/StopWatchController.h
+++ b/src/components/stopwatch/StopWatchController.h
@@ -47,7 +47,7 @@ namespace Pinetime {
 
     private:
       // Time at which stopwatch wraps around to zero (1000 hours)
-      TickType_t elapsedTimeBoundary = configTICK_RATE_HZ * 60 * 60 * 1000;
+      static constexpr TickType_t elapsedTimeBoundary = (TickType_t) configTICK_RATE_HZ * 60 * 60 * 1000;
       // Current state of stopwatch
       StopWatchStates currentState = StopWatchStates::Cleared;
       // Start time of current duration