Fix a syntax error.
R=rnystrom@google.com
Review URL: https://codereview.chromium.org//1834263004 .
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a23eebd..75a311f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.6.4
+
+* Fix a syntax error introduced in 1.6.3.
+
## 1.6.3
* Make `Chain.capture()` generic. Its signature is now `T Chain.capture<T>(T
diff --git a/lib/src/chain.dart b/lib/src/chain.dart
index b436651..6de670f 100644
--- a/lib/src/chain.dart
+++ b/lib/src/chain.dart
@@ -68,7 +68,7 @@
/// considered unhandled.
///
/// If [callback] returns a value, it will be returned by [capture] as well.
- static /*=T*? capture/*<T>*/(/*=T*/ callback(),
+ static /*=T*/ capture/*<T>*/(/*=T*/ callback(),
{void onError(error, Chain chain), bool when: true}) {
if (!when) {
var newOnError;
diff --git a/pubspec.yaml b/pubspec.yaml
index ce1d39d..654d13d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -7,7 +7,7 @@
#
# When the major version is upgraded, you *must* update that version constraint
# in pub to stay in sync with this.
-version: 1.6.3
+version: 1.6.4
author: "Dart Team <misc@dartlang.org>"
homepage: http://github.com/dart-lang/stack_trace
description: >
