diff --git a/Sources/Brave/Frontend/UserContent/UserScripts/Sandboxed/MainFrame/AtDocumentStart/NightModeScript.js b/Sources/Brave/Frontend/UserContent/UserScripts/Sandboxed/MainFrame/AtDocumentStart/NightModeScript.js
index 2eeaeec4b00..cc9b6da0eb3 100644
--- a/Sources/Brave/Frontend/UserContent/UserScripts/Sandboxed/MainFrame/AtDocumentStart/NightModeScript.js
+++ b/Sources/Brave/Frontend/UserContent/UserScripts/Sandboxed/MainFrame/AtDocumentStart/NightModeScript.js
@@ -50,8 +50,8 @@ function getStyleElement() {
 }
 
 function applyInvertFilterToChildBackgroundImageElements(parentNode) {
-  parentNode.querySelectorAll("[style*=\"background\"]").forEach(function(el) {
-    if ((el.style.backgroundImage || "").startsWith("url")) {
+  [...parentNode.children].forEach(function(el) {
+    if ((getComputedStyle(el)["background-image"] || "").startsWith("url")) {
       applyInvertFilterToElement(el);
     }
   });