diff --git a/engine/src/flutter/flow/instrumentation.cc b/engine/src/flutter/flow/instrumentation.cc
index f5e7228c23..6c139a561d 100644
--- a/engine/src/flutter/flow/instrumentation.cc
+++ b/engine/src/flutter/flow/instrumentation.cc
@@ -14,7 +14,7 @@ static const size_t kMaxSamples = 120;
 static const size_t kMaxFrameMarkers = 8;
 
 Stopwatch::Stopwatch() : start_(ftl::TimePoint::Now()), current_sample_(0) {
-  const ftl::TimeDelta delta;
+  const ftl::TimeDelta delta = ftl::TimeDelta::Zero();
   laps_.resize(kMaxSamples, delta);
 }