diff --git a/php/upload.php b/php/upload.php
index c4a20bc..c1e955a 100755
--- a/php/upload.php
+++ b/php/upload.php
@@ -76,10 +76,14 @@
 	}
 
 	function push_to_git() {
-		$git_cmd = 'git --git-dir=/var/www/src/aliceclass';
-		shell_exec($git_cmd . ' add /var/www/src/aliceclass/_data/aulas.json');
-		shell_exec($git_cmd . ' commit -m "update data"');
-		shell_exec($git_cmd . ' push');
+		$git_cmd = 'cd /var/www/src/aliceclass; git ';
+
+		shell_exec($git_cmd . ' config user.name www-data 2>&1');
+		shell_exec($git_cmd . ' config user.email www-data@noreply.alice 2>&1');
+
+		shell_exec($git_cmd . ' add /var/www/src/aliceclass/_data/aulas.json 2>&1');
+		shell_exec($git_cmd . ' commit -m "update data" 2>&1');
+		shell_exec($git_cmd . ' push 2>&1');
 	}
 
 	$username = $_SERVER['PHP_AUTH_USER'];