diff --git a/lib/rules/jsx-sort-props.js b/lib/rules/jsx-sort-props.js
index 79bde569db..e52c2b028f 100644
--- a/lib/rules/jsx-sort-props.js
+++ b/lib/rules/jsx-sort-props.js
@@ -233,6 +233,7 @@ function validateReservedFirstConfig(context, reservedFirst) {
   }
 }
 
+const reportedNodeAttributes = new WeakMap();
 /**
  * Check if the current node attribute has already been reported with the same error type
  * if that's the case then we don't report a new error
@@ -243,7 +244,6 @@ function validateReservedFirstConfig(context, reservedFirst) {
  * @param {Object} context The context of the rule
  * @param {Array<String>} reservedList The list of reserved props
  */
-const reportedNodeAttributes = new WeakMap();
 function reportNodeAttribute(nodeAttribute, errorType, node, context, reservedList) {
   const errors = reportedNodeAttributes.get(nodeAttribute) || [];