diff --git a/src/core/ticker/Ticker.js b/src/core/ticker/Ticker.js
index 970c82e..ffc4ea3 100644
--- a/src/core/ticker/Ticker.js
+++ b/src/core/ticker/Ticker.js
@@ -334,7 +334,7 @@
     // Allow calling update directly with default currentTime.
     currentTime = currentTime || performance.now();
     // Save uncapped elapsedMS for measurement
-    elapsedMS = this.elapsedMS = currentTime - this.lastTime;
+    Math.max(0, elapsedMS = this.elapsedMS = currentTime - this.lastTime);
 
     // cap the milliseconds elapsed used for deltaTime
     if (elapsedMS > this._maxElapsedMS)