diff --git a/types/connect-datadog/connect-datadog-tests.ts b/types/connect-datadog/connect-datadog-tests.ts
index 4160ba4bc0..b4b8c43859 100644
--- a/types/connect-datadog/connect-datadog-tests.ts
+++ b/types/connect-datadog/connect-datadog-tests.ts
@@ -8,6 +8,7 @@ const middleware = connectDD({});
 const middleware2 = connectDD({
     stat: 'foo',
     path: true,
+    base_url: true,
     method: true,
     protocol: true,
     response_code: true,
diff --git a/types/connect-datadog/index.d.ts b/types/connect-datadog/index.d.ts
index 9b68fb6a4f..eaf3231c4b 100644
--- a/types/connect-datadog/index.d.ts
+++ b/types/connect-datadog/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/datadog/node-connect-datadog
 // Definitions by: Moshe Good <https://github.com/moshegood>
 //                 Michael Mifsud <https://github.com/xzyfer>
+//                 Lewis Vail <https://github.com/lewisvail3>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.2
 
@@ -17,6 +18,7 @@ declare namespace Factory {
         stat?: string;
         tags?: string[];
         path?: boolean;
+        base_url?: boolean;
         method?: boolean;
         protocol?: boolean;
         response_code?: boolean;