diff --git a/extensions/typescript/server/typescript/lib/lib.es2015.core.d.ts b/extensions/typescript/server/typescript/lib/lib.es2015.core.d.ts
index 1ade52dd6ab1a..b386b3f9ae6da 100644
--- a/extensions/typescript/server/typescript/lib/lib.es2015.core.d.ts
+++ b/extensions/typescript/server/typescript/lib/lib.es2015.core.d.ts
@@ -217,7 +217,7 @@ interface NumberConstructor {
 
     /**
       * Returns true if passed value is finite.
-      * Unlike the global isFininte, Number.isFinite doesn't forcibly convert the parameter to a
+      * Unlike the global isFinite, Number.isFinite doesn't forcibly convert the parameter to a
       * number. Only finite values of the type number, result in true.
       * @param number A numeric value.
       */