diff --git a/packages/opencensus-core/package.json b/packages/opencensus-core/package.json
index f0266ed1d..70c610928 100644
--- a/packages/opencensus-core/package.json
+++ b/packages/opencensus-core/package.json
@@ -54,7 +54,6 @@
     "nyc": "11.6.0"
   },
   "dependencies": {
-    "async_hooks": "^1.0.0",
     "continuation-local-storage": "^3.2.1",
     "debug": "^3.1.0",
     "intercept-stdout": "^0.1.2",
diff --git a/packages/opencensus-core/src/trace/model/tracer.ts b/packages/opencensus-core/src/trace/model/tracer.ts
index 704e95013..fadb36fb7 100644
--- a/packages/opencensus-core/src/trace/model/tracer.ts
+++ b/packages/opencensus-core/src/trace/model/tracer.ts
@@ -116,11 +116,11 @@ export class Tracer implements types.Tracer {
           }
         }
         const aRoot = new RootSpan(this, options);
-        const sampleDecisition: boolean = propagatedSample ?
+        const sampleDecision: boolean = propagatedSample ?
             propagatedSample :
             this.sampler.shouldSample(aRoot.traceId);
 
-        if (sampleDecisition) {
+        if (sampleDecision) {
           aRoot.start();
           this.currentRootSpan = aRoot;
           newRoot = aRoot;
diff --git a/packages/opencensus-core/test/test-console-exporter.ts b/packages/opencensus-core/test/test-console-exporter.ts
index 22b81b9b6..82bc79a2e 100644
--- a/packages/opencensus-core/test/test-console-exporter.ts
+++ b/packages/opencensus-core/test/test-console-exporter.ts
@@ -1,5 +1,5 @@
 /**
- * Copyright 2018 Google LLC. All Rights Reserved.
+ * Copyright 2018, OpenCensus Authors
  *
  * Licensed under the Apache License, Version 2.0 (the 'License');
  * you may not use this file except in compliance with the License.