diff --git a/functions/misc.xml b/functions/misc.xml
index 1eb6781ed9..27fd1a7a75 100644
--- a/functions/misc.xml
+++ b/functions/misc.xml
@@ -193,7 +193,7 @@ echo CONSTANT; // outputs "Hello world."
 <?php
 $filename = '/path/to/data-file';
 $file = fopen ($filename, 'r')
-    or die "unable to open file ($filename)";
+    or die("unable to open file ($filename)");
 ?>
       </programlisting>
      </example>