diff --git a/include/sanity_check.php b/include/sanity_check.php
index 427457d8b..3e8832912 100644
--- a/include/sanity_check.php
+++ b/include/sanity_check.php
@@ -20,7 +20,7 @@
 				array_push($errors, "Please don't run this script as root.");
 			}
 
-			if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
+			if (!(version_compare(PHP_VERSION, '5.3.0', '>='))) {
 				array_push($errors, "PHP version 5.3.0 or newer required.");
 			}