diff --git a/packages/squiggle-lang/package.json b/packages/squiggle-lang/package.json
index bc523730..2de6e637 100644
--- a/packages/squiggle-lang/package.json
+++ b/packages/squiggle-lang/package.json
@@ -15,7 +15,7 @@
     "coverage:rescript": "rm -f *.coverage; yarn clean; BISECT_ENABLE=yes yarn build; yarn test:rescript; bisect-ppx-report html",
     "coverage:ts": "nyc --reporter=lcov yarn test:ts",
     "coverage:rescript:ci": "yarn clean; BISECT_ENABLE=yes yarn build; yarn test:rescript; bisect-ppx-report send-to Codecov",
-    "coverage:ts:ci": "yarn coverage:ts && codecov",
+    "coverage:ts:ci": "yarn build; yarn coverage:ts && codecov",
     "lint:rescript": "./lint.sh",
     "lint:prettier": "prettier --check .",
     "lint": "yarn lint:rescript && yarn lint:prettier",