Fix a typo in the previous fix.

R=jmesserly@google.com

Review URL: https://codereview.chromium.org//2187983002 .
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7c2dcc..0ac70e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.1.2
+
+* Fix a typo in the previous fix.
+
 ## 1.1.1
 
 * Don't crash if the `SyncPackageResolver` has no package information at all.
diff --git a/lib/source_map_stack_trace.dart b/lib/source_map_stack_trace.dart
index 5d6664c..ae2f124 100644
--- a/lib/source_map_stack_trace.dart
+++ b/lib/source_map_stack_trace.dart
@@ -76,7 +76,7 @@
           p.url.isWithin(packageResolver.packageRoot.toString(), sourceUrl)) {
         sourceUrl = "package:" + p.url.relative(sourceUrl,
             from: packageResolver.packageRoot.toString());
-      } else if (packageResolver.packageConfig != null) {
+      } else if (packageResolver.packageConfigMap != null) {
         for (var package in packageResolver.packageConfigMap.keys) {
           var packageUrl = packageResolver.packageConfigMap[package].toString();
           if (!p.url.isWithin(packageUrl, sourceUrl)) continue;
diff --git a/pubspec.yaml b/pubspec.yaml
index 0feb7f5..aa762c3 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: source_map_stack_trace
-version: 1.1.1
+version: 1.1.2
 description: >
   A package for applying source maps to stack traces.
 author: Dart Team <misc@dartlang.org>