diff --git a/.eslintrc.js b/.eslintrc.js
index 0721c1c8d2..6a0576c58a 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -5,7 +5,10 @@ const path = require('path');
 // but only if they come from a module that starts with eslint-config-
 // So we load the filename directly (and it could be in node_modules/
 // or or ../node_modules/ etc)
-const matrixJsSdkPath = path.dirname(require.resolve('matrix-js-sdk'));
+//
+// We add a `..` to the end because the js-sdk lives out of lib/, but the eslint
+// config is at the project root.
+const matrixJsSdkPath = path.join(path.dirname(require.resolve('matrix-js-sdk')), '..');
 
 module.exports = {
     parser: "babel-eslint",
diff --git a/scripts/ci/install-deps.sh b/scripts/ci/install-deps.sh
index 6484ebab29..a2e2e59a45 100755
--- a/scripts/ci/install-deps.sh
+++ b/scripts/ci/install-deps.sh
@@ -7,6 +7,7 @@ scripts/fetchdep.sh matrix-org matrix-js-sdk
 pushd matrix-js-sdk
 yarn link
 yarn install
+yarn build
 popd
 
 yarn link matrix-js-sdk