diff --git a/apps/accessibility/lib/Controller/AccessibilityController.php b/apps/accessibility/lib/Controller/AccessibilityController.php
index 5a5ff5b8a2f..6d0684cd439 100644
--- a/apps/accessibility/lib/Controller/AccessibilityController.php
+++ b/apps/accessibility/lib/Controller/AccessibilityController.php
@@ -258,7 +258,7 @@ class AccessibilityController extends Controller {
 	 * @return string
 	 */
 	private function invertSvgIconsColor(string $css) {
-		return str_replace(['/000', '/fff', '/***'], ['/***', '/000', '/fff'], $css);
+		return str_replace(['color=000', 'color=fff', 'color=***'], ['color=***', 'color=000', 'color=fff'], $css);
 	}
 
 	/**