diff --git a/extensions/typescript-language-features/src/protocol.d.ts b/extensions/typescript-language-features/src/protocol.d.ts
index 853fd543f34..7e9e45f2575 100644
--- a/extensions/typescript-language-features/src/protocol.d.ts
+++ b/extensions/typescript-language-features/src/protocol.d.ts
@@ -10,9 +10,4 @@ declare module 'typescript/lib/protocol' {
 	interface Response {
 		readonly _serverType?: ServerType;
 	}
-
-	interface JSDocLinkDisplayPart {
-		target: Proto.FileSpan;
-	}
 }
-
diff --git a/extensions/typescript-language-features/src/utils/previewer.ts b/extensions/typescript-language-features/src/utils/previewer.ts
index dfa29ee051b..93a88382500 100644
--- a/extensions/typescript-language-features/src/utils/previewer.ts
+++ b/extensions/typescript-language-features/src/utils/previewer.ts
@@ -167,8 +167,7 @@ function convertLinkTags(
 			case 'linkName':
 				if (currentLink) {
 					currentLink.name = part.text;
-					// TODO: remove cast once we pick up TS 4.3
-					currentLink.target = (part as any as Proto.JSDocLinkDisplayPart).target;
+					currentLink.target = (part as Proto.JSDocLinkDisplayPart).target;
 				}
 				break;