diff --git a/nextrip.php b/nextrip.php
index a90d13d..00ef049 100644
--- a/nextrip.php
+++ b/nextrip.php
@@ -1,30 +1,36 @@
-<?php /*
-	This is free and unencumbered software released into the public domain.
-
-	Anyone is free to copy, modify, publish, use, compile, sell, or
-	distribute this software, either in source code form or as a compiled
-	binary, for any purpose, commercial or non-commercial, and by any
-	means.
-
-	In jurisdictions that recognize copyright laws, the author or authors
-	of this software dedicate any and all copyright interest in the
-	software to the public domain. We make this dedication for the benefit
-	of the public at large and to the detriment of our heirs and
-	successors. We intend this dedication to be an overt act of
-	relinquishment in perpetuity of all present and future rights to this
-	software under copyright law.
-
-	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-	IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-	OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-	OTHER DEALINGS IN THE SOFTWARE.
-
-	For more information, please refer to <http://unlicense.org/>
-*/ ?>
-
+<?php
+	/* This is free and unencumbered software released into the public domain.
+	 *
+	 * Anyone is free to copy, modify, publish, use, compile, sell, or
+	 * distribute this software, either in source code form or as a compiled
+	 * binary, for any purpose, commercial or non-commercial, and by any
+	 * means.
+	 *
+	 * In jurisdictions that recognize copyright laws, the author or authors
+	 * of this software dedicate any and all copyright interest in the
+	 * software to the public domain. We make this dedication for the benefit
+	 * of the public at large and to the detriment of our heirs and
+	 * successors. We intend this dedication to be an overt act of
+	 * relinquishment in perpetuity of all present and future rights to this
+	 * software under copyright law.
+	 *
+	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+	 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+	 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+	 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+	 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	 * OTHER DEALINGS IN THE SOFTWARE.
+	 *
+	 * For more information, please refer to <http://unlicense.org/>
+	 */
+
+	// Return source code
+	if(isset($_GET['source'])) {
+		header("Content-Type: text/plain");
+		die(file_get_contents(basename($_SERVER['PHP_SELF'])));
+	}
+?>
 <!DOCTYPE html>
 <html lang="ja">
 <head>
@@ -46,9 +52,6 @@
 </head>
 <body>
 	<?php
-		// このページのURL
-		$self = "https://nextrip.xn--rck9c.xn--tckwe/";
-
 		// formの変数
 		$stop = $_GET['stop'];
 		$favSet = $_POST['fav-set'];
@@ -58,10 +61,10 @@
 	<header>
 		<nav class="navbar navbar-light bg-light">
 			<div class="container-fluid">
-				<a class="navbar-brand" href="<?php echo $self; ?>">停留所のNexTrip情報</a>
+				<a class="navbar-brand" href="<?php echo $_SERVER['PHP_SELF']; ?>">停留所のNexTrip情報</a>
 				<ul class="navbar-nav">
 					<li class="nav-item">
-						<a class="nav-link" href="https://gist.github.com/Epicpkmn11/6e60adbf3475277b753b259ab02a53cd" target="_blank">ソース</a>
+						<a class="nav-link" href="?source">ソース</a>
 					</li>
 				</ul>
 			</div>
@@ -106,7 +109,7 @@
 					// お気に入りフォームをプリント
 					$favDesc = json_decode($_COOKIE['favorites'], true)[$stop];
 
-					echo "<form method=\"post\" action=\"$self\">";
+					echo '<form method="post" action="' . $_SERVER['PHP_SELF'] . '">';
 					echo "<input type=\"hidden\" name=\"fav-set\" value=\"$stop\">";
 					echo '<div class="input-group">';
 					echo '<label for="desc" class="input-group-text">お気に入り</label>';
@@ -119,7 +122,7 @@
 				}
 			} else { //　HPを表示
 				// 停留所フォームをプリント
-				echo "<form method=\"get\" action=\"$self\">";
+				echo '<form method="get" action="' . $_SERVER['PHP_SELF'] . '">';
 				echo '<div class="input-group mb-3">';
 				echo '<label for="stop" class="input-group-text">停留所</label>';
 				echo '<input type="number" min="0" id="stop" name="stop" class="form-control" placeholder="12345" required>';
@@ -151,7 +154,7 @@
 				// お気に入りがある場合、プリント
 				if(count($favorites) > 0) {
 					echo '<h2>お気に入り</h2>';
-					echo "<form action=\"$self\">";
+					echo '<form action="' . $_SERVER['PHP_SELF'] . '">';
 					echo '<ul class="list-unstyled">';
 					foreach($favorites as $favStop => $favDesc) {
 						echo '<li class="mb-1 d-flex">';
