diff --git a/.travis.yml b/.travis.yml
index e476b333885..467f88577b8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -67,6 +67,7 @@ jobs:
         - npm run test-install
         - npm run lint
         - npm run test-doclint
+        - npm run ensure-new-docs-up-to-date
 
     # Runs unit tests on Linux + Firefox
     - node_js: "10.19.0"
diff --git a/package.json b/package.json
index 439c4d6fc86..22e78b780a4 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,8 @@
     "update-protocol-d-ts": "node utils/protocol-types-generator update",
     "compare-protocol-d-ts": "node utils/protocol-types-generator compare",
     "test-install": "scripts/test-install.sh",
-    "generate-docs": "npm run tsc && api-extractor run --local --verbose && api-documenter markdown -i temp -o new-docs"
+    "generate-docs": "npm run tsc && api-extractor run --local --verbose && api-documenter markdown -i temp -o new-docs",
+    "ensure-new-docs-up-to-date": "npm run generate-docs && exit `git status --porcelain | head -255 | wc -l`"
   },
   "files": [
     "lib/",