diff --git a/lib/plugins/html/htmlBuilder.js b/lib/plugins/html/htmlBuilder.js
index 1a0a0b0c2..81fd4108a 100644
--- a/lib/plugins/html/htmlBuilder.js
+++ b/lib/plugins/html/htmlBuilder.js
@@ -61,7 +61,7 @@ class HTMLBuilder {
   }
 
   addInlineCSS(css) {
-    this.inlineCss.push(css);
+    this.inlineCSS.push(css);
   }
 
   async render(dataCollector) {