diff --git a/lib/rules/no-classname-with-stylename.js b/lib/rules/no-classname-with-stylename.js
index 221a52c..188b99e 100644
--- a/lib/rules/no-classname-with-stylename.js
+++ b/lib/rules/no-classname-with-stylename.js
@@ -38,11 +38,14 @@ module.exports = {
 
         return {
             "JSXOpeningElement": function (node) {
-                const hasClassNameWithoutExpr = node.attributes.some((attr) => attr.name.name === "className" && (attr.value === null || attr.value.type !== 'JSXExpressionContainer'))
-                const hasStyleName = node.attributes.some((attr) => attr.name.name === "styleName");
+                const hasClassNameWithoutExpr = node.attributes.some((attr) => (
+                    attr.type === "JSXIdentifier" && attr.name.name === "className" &&
+                    (attr.value === null || attr.value.type !== 'JSXExpressionContainer')
+                ));
+                const hasStyleName = node.attributes.some((attr) => attr.type === "JSXIdentifier" && attr.name.name === "styleName");
 
                 if (hasClassNameWithoutExpr && hasStyleName) {
-                    const nodeAttrClassName = node.attributes.find((attr) => attr.name.name === "className");
+                    const nodeAttrClassName = node.attributes.find((attr) => attr.type === "JSXIdentifier" && attr.name.name === "className");
                     context.report(nodeAttrClassName, reportText);
                 }
             }