diff --git a/ca/main.php b/ca/main.php
index ab634c5..0f88a3b 100644
--- a/ca/main.php
+++ b/ca/main.php
@@ -27,10 +27,10 @@ case 'gen_crl':
                 ?>
                 <center><h2>Certificate Revocation List Updated</h2></center>
                 <p>
-                <form action=<?=$PHP_SELF?> method=post>
+                <form action=<?php echo $PHP_SELF?> method=post>
                 <input type=submit name=submit value="Back to Menu">
                 </form>
-                <?
+                <?php
                 print '<pre>'.CA_crl_text().'</pre>';
         }
         else {
@@ -39,14 +39,14 @@ case 'gen_crl':
                 <h2>There was an error updating the Certificate Revocation List.</h2></font><br>
                 <blockquote>
                 <h3>Debug Info:</h3>
-                <pre><?=$errtxt?></pre>
+                <pre><?php echo $errtxt?></pre>
                 </blockquote>
-                <form action=<?=$PHP_SELF?> method=post>
+                <form action=<?php echo $PHP_SELF?> method=post>
                 <p>
                 <input type=submit name=submit value="Back to Menu">
                 <p>
                 </form>
-                <?
+                <?php
         }
         break;
 
@@ -70,27 +70,27 @@ default:
 	<strong><cite>Certificate Management Control Panel</cite></strong>.</td></tr>
 
 	<tr><td style="text-align: center; vertical-align: middle; font-weight: bold;">
-	<a href=<?=$PHP_SELF?>?stage=gen_crl>Update & View the Certificate Revocation List</a></td>
+	<a href=<?php echo $PHP_SELF?>?stage=gen_crl>Update & View the Certificate Revocation List</a></td>
 	<td>Some applications automagically reference the Certificate Revocation List to determine
 	certificate validity.  It is not necessary to perform this update function, as the CRL is 
 	updated when certificates are revoked.  However, doing so is harmless.
 	<a href=../help.php target=_help>Read the online help</a> to learn more about this.</td></tr>
 
 	<tr><td style="text-align: center; vertical-align: middle; font-weight: bold;">
-	<a href=<?=$PHP_SELF?>?stage=dl_root>Download the Root Certificate</a></td>
+	<a href=<?php echo $PHP_SELF?>?stage=dl_root>Download the Root Certificate</a></td>
 	<td>The "Root" certificate must be installed before using any of the 
 	certificates issued here. <a href=../help.php target=_help>Read the online help</a> 
 	to learn more about this.</td></tr>
 
 	<tr><td style="text-align: center; vertical-align: middle; font-weight: bold;">
-	<a href=<?=$PHP_SELF?>?stage=dl_crl>Download the Certificate Revocation List</a></td>
+	<a href=<?php echo $PHP_SELF?>?stage=dl_crl>Download the Certificate Revocation List</a></td>
 	<td>This is the official list of revoked certificates.  Using this list with your e-mail or
 	browser application is optional.  Some applications will automagically reference this list. </td></tr>
 
 	</table>
 	</center>
 	<br><br>
-	<?
+	<?php
 	printFooter();
 }