diff --git a/ROADMAP.md b/ROADMAP.md
index 2c12875..bf996be 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -219,7 +219,7 @@
 - [X] "no-var"
 - [ ] "no-void"
 - [ ] "no-warning-comments"
-- [ ] "no-whitespace-before-property"
+- [X] "no-whitespace-before-property"
 - [X] "no-with"
 - [ ] "nonblock-statement-body-position"
 - [X] "object-curly-newline"
diff --git a/src/rules/javascript/default.json b/src/rules/javascript/default.json
index 231730c..1ca2593 100644
--- a/src/rules/javascript/default.json
+++ b/src/rules/javascript/default.json
@@ -449,6 +449,9 @@
   "no-var": [
     "error"
   ],
+  "no-whitespace-before-property": [
+    "error"
+  ],
   "no-with": [
     "error"
   ],