diff --git a/ui/Makefile b/ui/Makefile
index 235a81c62..3b5678391 100644
--- a/ui/Makefile
+++ b/ui/Makefile
@@ -39,7 +39,7 @@ lint-docs: node_modules/markdownlint-cli/markdownlint.js
 
 .PHONY: format
 format: node_modules/prettier/bin-prettier.js
-	node_modules/prettier/bin-prettier.js --write 'src/**/*.js' 'src/**/*.tsx'
+	node_modules/prettier/bin-prettier.js --write 'src/**/*.js' 'src/**/*.ts' 'src/**/*.tsx'
 
 build/stats.json: build
 	node_modules/source-map-explorer/dist/cli.js build/static/*/*.{js,css} --json > build/stats.json
diff --git a/ui/package.json b/ui/package.json
index b6e196622..68766e426 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -66,8 +66,8 @@
   },
   "jest": {
     "collectCoverageFrom": [
-      "src/**/*.{js,jsx,tsx}",
-      "!src/**/*.stories.{js,jsx,tsx}"
+      "src/**/*.{js,ts,tsx}",
+      "!src/**/*.stories.{js,ts,tsx}"
     ]
   },
   "devDependencies": {