diff --git a/TS.fsx b/TS.fsx
index 30720c269..0e40b9032 100644
--- a/TS.fsx
+++ b/TS.fsx
@@ -28,6 +28,7 @@ let rec DomTypeToTsType (objDomType: string) =
     | "Date" -> "Date"
     | "DOMHighResTimeStamp" -> "number"
     | "DOMString" -> "string"
+    | "DOMStringList" -> "string[]"
     | "DOMTimeStamp" -> "number"
     | "EndOfStreamError" -> "number"
     | "EventListener" -> "EventListenerOrEventListenerObject"
diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 41e6bdb5c..4dec46aa5 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -2173,7 +2173,7 @@ interface DataTransfer {
     effectAllowed: string;
     readonly files: FileList;
     readonly items: DataTransferItemList;
-    readonly types: DOMStringList;
+    readonly types: string[];
     clearData(format?: string): boolean;
     getData(format: string): string;
     setData(format: string, data: string): boolean;
@@ -7584,7 +7584,7 @@ declare var IDBCursorWithValue: {
 
 interface IDBDatabase extends EventTarget {
     readonly name: string;
-    readonly objectStoreNames: DOMStringList;
+    readonly objectStoreNames: string[];
     onabort: (this: this, ev: Event) => any;
     onerror: (this: this, ev: ErrorEvent) => any;
     version: number;
@@ -7650,7 +7650,7 @@ declare var IDBKeyRange: {
 }
 
 interface IDBObjectStore {
-    readonly indexNames: DOMStringList;
+    readonly indexNames: string[];
     keyPath: string | string[];
     readonly name: string;
     readonly transaction: IDBTransaction;
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
index 3c49e4f0b..f1d40bf9b 100644
--- a/baselines/webworker.generated.d.ts
+++ b/baselines/webworker.generated.d.ts
@@ -341,7 +341,7 @@ declare var IDBCursorWithValue: {
 
 interface IDBDatabase extends EventTarget {
     readonly name: string;
-    readonly objectStoreNames: DOMStringList;
+    readonly objectStoreNames: string[];
     onabort: (this: this, ev: Event) => any;
     onerror: (this: this, ev: ErrorEvent) => any;
     version: number;
@@ -407,7 +407,7 @@ declare var IDBKeyRange: {
 }
 
 interface IDBObjectStore {
-    readonly indexNames: DOMStringList;
+    readonly indexNames: string[];
     keyPath: string | string[];
     readonly name: string;
     readonly transaction: IDBTransaction;