diff --git a/system/core/Common.php b/system/core/Common.php
index c7bb34549b..fdad4e206c 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -564,7 +564,7 @@ function set_status_header($code = 200, $text = '')
 			}
 		}
 
-		if (strpos(PHP_SAPI, 'cgi') === 0)
+		if (PHP_SAPI === "cgi")
 		{
 			header('Status: '.$code.' '.$text, TRUE);
 			return;