diff --git a/docs/060_inline_mode.php b/docs/060_inline_mode.php
index 2ecfa02..3e6dbbb 100644
--- a/docs/060_inline_mode.php
+++ b/docs/060_inline_mode.php
@@ -12,7 +12,7 @@
 $s->assign("name", "Jason Doolis");
 $s->assign("turtles", ["Michelangeo", "Donatello", "Leonardo", "Raphael"]);
 
-print $s->fetch("INLINE");
+print $s->fetch(SLUZ_INLINE);
 
 ////////////////////////////////////////////////////
 
diff --git a/sluz.class.php b/sluz.class.php
index 47966e0..b4cdd3d 100644
--- a/sluz.class.php
+++ b/sluz.class.php
@@ -2,6 +2,8 @@
 
 ////////////////////////////////////////////////////////
 
+define('SLUZ_INLINE', 987123654); // Just a random number
+
 class sluz {
 	public $version      = '0.6';
 	public $tpl_file     = null;
@@ -192,7 +194,7 @@ public function fetch($tpl_file = "") {
 		// If we're in simple mode and we have a __halt_compiler() we can assume inline mode
 		$inline_simple = $this->simple_mode && !$tpl_file && $this->get_inline_content($this->php_file);
 
-		if ($tpl_file === "INLINE" || $inline_simple) {
+		if ($tpl_file === SLUZ_INLINE || $inline_simple) {
 			$str = $this->get_inline_content($this->php_file);
 		} elseif (!is_readable($tf)) {
 			$this->error_out("Unable to load template file <code>$tf</code>",42280);