diff --git a/public/index.php b/public/index.php
index 4d7356ce..55eef364 100644
--- a/public/index.php
+++ b/public/index.php
@@ -10,7 +10,22 @@ if (file_exists(__DIR__ . '/../embedded.txt'))
 else
 {
 	define('GROCY_IS_EMBEDDED_INSTALL', false);
-	define('GROCY_DATAPATH', __DIR__ . '/../data');
+
+	$datapath = 'data';
+	if (getenv('GROCY_DATAPATH') !== false)
+	{
+		$datapath = getenv('GROCY_DATAPATH');
+	}
+	elseif (array_key_exists('GROCY_DATAPATH', $_SERVER))
+	{
+		$datapath = $_SERVER['GROCY_DATAPATH'];
+	}
+
+	if ($datapath[0] != '/')
+	{
+		$datapath = __DIR__ . '/../' . $datapath;
+	}
+	define('GROCY_DATAPATH', $datapath);
 }
 
 require_once __DIR__ . '/../helpers/PrerequisiteChecker.php';