diff --git a/src/post-receive.php b/src/post-receive.php
index 2351d6e..d8823ce 100644
--- a/src/post-receive.php
+++ b/src/post-receive.php
@@ -3,7 +3,7 @@ $command = "cd /var/www/status-site && git reset --hard HEAD && git pull origin
 
 // TODO check against ip or secret hash
 
-if ( $_SERVER['HTTP_X_GITHUB_EVENT'] == 'push' ) {
+if ( $_SERVER['X-GitHub-Event'] == 'push' ) {
 
     if( ($fp = popen($command, "r")) ) {
         while( !feof($fp) ){