diff --git a/Base/res/ladybird/templates/directory.html b/Base/res/ladybird/templates/directory.html
index ef96bc2f7d9..c346484732e 100644
--- a/Base/res/ladybird/templates/directory.html
+++ b/Base/res/ladybird/templates/directory.html
@@ -2,7 +2,7 @@
 <html>
 <head>
     <meta charset="UTF-8">
-    <title>Index of @path@</title>
+    <title>Index of %path%</title>
     <style>
         header {
             margin-bottom: 10px;
@@ -51,11 +51,11 @@
 <body>
     <header>
         <span class="folder" style="width: 24px; height: 24px;"></span>
-        <h1>Index of @path@</h1>
+        <h1>Index of %path%</h1>
     </header>
-    <p><a href="@parent_url@"><span class="open-parent"></span>Open Parent Directory</a></p>
+    <p><a href="%parent_url%"><span class="open-parent"></span>Open Parent Directory</a></p>
     <hr>
-    @contents@
+    %contents%
     <hr>
 </body>
 </html>
diff --git a/Base/res/ladybird/templates/error.html b/Base/res/ladybird/templates/error.html
index d593cdc0a43..12c3eba8065 100644
--- a/Base/res/ladybird/templates/error.html
+++ b/Base/res/ladybird/templates/error.html
@@ -20,8 +20,8 @@
 <body>
     <header>
         <img src="resource://icons/32x32/msgbox-warning.png" alt="Warning" width="24" height="24">
-        <h1>Failed to load @failed_url@</h1>
+        <h1>Failed to load %failed_url%</h1>
     </header>
-    <p>@error_message@</p>
+    <p>%error_message%</p>
 </body>
 </html>
diff --git a/Base/res/ladybird/templates/version.html b/Base/res/ladybird/templates/version.html
index e80bbbb0120..49c6de845ec 100644
--- a/Base/res/ladybird/templates/version.html
+++ b/Base/res/ladybird/templates/version.html
@@ -2,7 +2,7 @@
 <html lang="en">
 <head>
     <meta charset="UTF-8">
-    <title>About @browser_name@</title>
+    <title>About %browser_name%</title>
     <style>
         img {
             float: left;
@@ -20,32 +20,32 @@
 <body>
     <header>
         <img src="resource://icons/128x128/app-browser.png">
-        <h1>About @browser_name@</h1>
+        <h1>About %browser_name%</h1>
     </header>
     <table>
         <tr>
             <th>Version:</th>
-            <td>@browser_version@</td>
+            <td>%browser_version%</td>
         </tr>
         <tr>
             <th>Arch:</th>
-            <td>@arch_name@</td>
+            <td>%arch_name%</td>
         </tr>
         <tr>
             <th>Operating System:</th>
-            <td>@os_name@</td>
+            <td>%os_name%</td>
         </tr>
         <tr>
             <th>User Agent:</th>
-            <td>@user_agent@</td>
+            <td>%user_agent%</td>
         </tr>
         <tr>
             <th>Command Line:</th>
-            <td>@command_line@</td>
+            <td>%command_line%</td>
         </tr>
         <tr>
             <th>Executable Path:</th>
-            <td>@executable_path@</td>
+            <td>%executable_path%</td>
         </tr>
     </table>
 </body>
diff --git a/Userland/Libraries/LibWeb/Loader/GeneratedPagesLoader.cpp b/Userland/Libraries/LibWeb/Loader/GeneratedPagesLoader.cpp
index 8da17333366..568dbd02ac0 100644
--- a/Userland/Libraries/LibWeb/Loader/GeneratedPagesLoader.cpp
+++ b/Userland/Libraries/LibWeb/Loader/GeneratedPagesLoader.cpp
@@ -32,7 +32,7 @@ ErrorOr<String> load_error_page(URL::URL const& url, StringView error_message)
     // FIXME: Use an actual templating engine (our own one when it's built, preferably with a way to check these usages at compile time)
     auto template_file = TRY(Core::Resource::load_from_uri("resource://ladybird/templates/error.html"sv));
     StringBuilder builder;
-    SourceGenerator generator { builder };
+    SourceGenerator generator { builder, '%', '%' };
     generator.set("failed_url", url.to_byte_string());
     generator.set("error_message", escape_html_entities(error_message));
     generator.append(template_file->data());
@@ -72,7 +72,7 @@ ErrorOr<String> load_file_directory_page(URL::URL const& url)
     // FIXME: Use an actual templating engine (our own one when it's built, preferably with a way to check these usages at compile time)
     auto template_file = TRY(Core::Resource::load_from_uri("resource://ladybird/templates/directory.html"sv));
     StringBuilder builder;
-    SourceGenerator generator { builder };
+    SourceGenerator generator { builder, '%', '%' };
     generator.set("path", escape_html_entities(lexical_path.string()));
     generator.set("parent_url", TRY(String::formatted("file://{}", escape_html_entities(lexical_path.parent().string()))));
     generator.set("contents", contents.to_byte_string());
@@ -86,7 +86,7 @@ ErrorOr<String> load_about_version_page()
     // FIXME: Use an actual templating engine (our own one when it's built, preferably with a way to check these usages at compile time)
     auto template_file = TRY(Core::Resource::load_from_uri("resource://ladybird/templates/version.html"sv));
     StringBuilder builder;
-    SourceGenerator generator { builder };
+    SourceGenerator generator { builder, '%', '%' };
     generator.set("browser_name", BROWSER_NAME);
     generator.set("browser_version", BROWSER_VERSION);
     generator.set("arch_name", CPU_STRING);
