--- a/devtools/.eslintrc.js
+++ b/devtools/.eslintrc.js
@@ -51,18 +51,17 @@ module.exports = {
     // Rules from the React plugin
     "react/display-name": "error",
     "react/no-danger": "error",
     "react/no-did-mount-set-state": "error",
     "react/no-did-update-set-state": "error",
     "react/no-direct-mutation-state": "error",
     "react/no-unknown-property": "error",
     "react/prefer-es6-class": ["warn", "never"],
-    // Disabled temporarily until errors are fixed.
-    "react/prop-types": "off",
+    "react/prop-types": "error",
     "react/sort-comp": ["error", {
       order: [
         "lifecycle",
         "everything-else",
         "render"
       ],
       groups: {
         lifecycle: [