diff --git a/src/main.php b/src/main.php
index b12d0e7..3cea790 100644
--- a/src/main.php
+++ b/src/main.php
@@ -87,9 +87,11 @@ public function __construct($config=[]) {
 		// load config from environment variables
 		foreach (array_keys($this->config) as $key) {
 			if (($value = getenv('IFM_' . strtoupper($key))) !== false) {
-				if (is_numeric($value))
-					$value = intval($value);
-				$this->config[$key] = trim($value, implode(['"', "'"])); // remove quotes from env vars
+				if (is_numeric($value)) {
+					$this->config[$key] = intval($value);
+				} else {
+					$this->config[$key] = trim($value, implode(['"', "'"])); // remove quotes from env vars
+				}
 			}
 		}