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-rw-r--r--src/librustdoc/html/static/.eslintrc.js1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustdoc/html/static/.eslintrc.js b/src/librustdoc/html/static/.eslintrc.js
index 35a1a27db91..f98a6c01fe9 100644
--- a/src/librustdoc/html/static/.eslintrc.js
+++ b/src/librustdoc/html/static/.eslintrc.js
@@ -67,5 +67,6 @@ module.exports = {
         "no-debugger": "error",
         "no-dupe-args": "error",
         "no-dupe-else-if": "error",
+        "no-dupe-keys": "error",
     }
 };