diff --git a/types/dd-trace/dd-trace-tests.ts b/types/dd-trace/dd-trace-tests.ts
index 6281802d36..18f5daae10 100644
--- a/types/dd-trace/dd-trace-tests.ts
+++ b/types/dd-trace/dd-trace-tests.ts
@@ -5,6 +5,10 @@ const tracer = ddTrace.init({
     service: 'MyLovelyService',
     hostname: 'localhost',
     port: 8126,
+    logger: {
+        debug: msg => { },
+        error: err => { }
+    }
 });
 
 tracer
diff --git a/types/dd-trace/index.d.ts b/types/dd-trace/index.d.ts
index 7ce1e89b09..11bcdb42f2 100644
--- a/types/dd-trace/index.d.ts
+++ b/types/dd-trace/index.d.ts
@@ -91,6 +91,16 @@ interface TracerOptions {
      * @default true
      */
     plugins?: boolean;
+
+    /**
+     * Custom logger to be used by the tracer (if debug = true),
+     * should support debug() and error() methods
+     * see https://datadog.github.io/dd-trace-js/#custom-logging__anchor
+     */
+    logger?: {
+        debug: (message: string) => void
+        error: (err: Error) => void
+    };
 }
 
 interface ExperimentalOptions {
@@ -135,5 +145,5 @@ interface TraceOptions {
     /**
      * Global tags that should be assigned to every span.
      */
-    tags?: { [key: string]: any; } | string;
+    tags?: { [key: string]: any } | string;
 }