diff --git a/inc/admin.php b/inc/admin.php
index 8471fb71..6dea61ff 100644
--- a/inc/admin.php
+++ b/inc/admin.php
@@ -67,7 +67,7 @@ public function inline_bootstrap_script() {
 		$output = sprintf(
 			'
 		<style type="text/css">
-			img[data-opt-src] {
+			img[data-opt-src]:not([data-opt-lazy-loaded]) {
 				transition: .2s filter linear, .2s opacity linear, .2s border-radius linear;
 				-webkit-transition: .2s filter linear, .2s opacity linear, .2s border-radius linear;
 				-moz-transition: .2s filter linear, .2s opacity linear, .2s border-radius linear;