diff --git a/.gitignore b/.gitignore
index 5e3e235ae1b..ebffa462811 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,7 +23,7 @@ tests/services/baselines/prototyping/local/*
 tests/services/browser/typescriptServices.js
 scripts/processDiagnosticMessages.d.ts
 scripts/processDiagnosticMessages.js
-scripts/importDefinitllyTypedTests.js
+scripts/importDefinitelyTypedTests.js
 src/harness/*.js
 rwc-report.html
 *.swp
diff --git a/scripts/importDefinitllyTypedTests.ts b/scripts/importDefinitelyTypedTests.ts
similarity index 100%
rename from scripts/importDefinitllyTypedTests.ts
rename to scripts/importDefinitelyTypedTests.ts