diff --git a/tools/rebuild.php b/tools/rebuild.php
index 0e63dc74..1560893c 100755
--- a/tools/rebuild.php
+++ b/tools/rebuild.php
@@ -100,5 +100,6 @@
 	if(!$options['quiet'])
 		printf("Complete! Took %g seconds\n", microtime(true) - $start);
 	
+	unset($board);
 	modLog('Rebuilt everything using tools/rebuild.php');