diff --git a/eslintrc.json b/eslintrc.json
index 52d9ec66..dae9ba73 100644
--- a/eslintrc.json
+++ b/eslintrc.json
@@ -68,6 +68,7 @@
     "new-parens": "error",
     "no-array-constructor": "error",
     "no-caller": "error",
+    "no-case-declarations": "error",
     "no-class-assign": "error",
     "no-compare-neg-zero": "error",
     "no-cond-assign": "error",