diff --git a/engine/src/flutter/lib/ui/geometry.dart b/engine/src/flutter/lib/ui/geometry.dart
index 3b4f9c01cab..4f6266e601d 100644
--- a/engine/src/flutter/lib/ui/geometry.dart
+++ b/engine/src/flutter/lib/ui/geometry.dart
@@ -419,7 +419,7 @@ class Size extends OffsetBase {
   ///  * [isFinite], which checks whether both dimensions are finite.
   static const Size infinite = Size(double.infinity, double.infinity);
 
-  /// Whether this size encloses a non-zero area.
+  /// Whether this size encloses a zero area.
   ///
   /// Negative areas are considered empty.
   bool get isEmpty => width <= 0.0 || height <= 0.0;