diff --git a/error-pages/403.php b/error-pages/403.php
index bc9cdaf..3c8e9a3 100644
--- a/error-pages/403.php
+++ b/error-pages/403.php
@@ -10,8 +10,8 @@
     <h1 class="page-title">Access Denied</h1>
       <div class="title-image">
         <picture>
-          <source srcset="/images/error-pages/denied.jxl">
-          <source srcset="/images/error-pages/denied.webp">
+          <source srcset="/images/error-pages/denied.jxl" type="image/jxl">
+          <source srcset="/images/error-pages/denied.webp" type="image/webp">
           <img src="/images/error-pages/denied.png" alt="Denied">
         </picture>
       </div>
diff --git a/error-pages/404.php b/error-pages/404.php
index 3cca6e6..d6b0df0 100644
--- a/error-pages/404.php
+++ b/error-pages/404.php
@@ -10,8 +10,8 @@
     <h1 class="page-title">Not Found</h1>
     <div class="title-image">
         <picture>
-          <source srcset="/images/error-pages/not-found.jxl">
-          <source srcset="/images/error-pages/not-found.webp">
+          <source srcset="/images/error-pages/not-found.jxl" type="image/jxl">
+          <source srcset="/images/error-pages/not-found.webp" type="image/webp">
           <img src="/images/error-pages/not-found.png" alt="Not Found">
         </picture>
       </div>