diff --git a/src/Expander.php b/src/Expander.php
index e4962b1..490c9a3 100644
--- a/src/Expander.php
+++ b/src/Expander.php
@@ -277,12 +277,11 @@ public function expandProperty(string $property_name, string $unexpanded_value,
         if (str_starts_with($property_name, "env.") &&
           !$data->has($property_name)) {
             $env_key = substr($property_name, 4);
-          if (isset($_SERVER[$env_key])) {
-            $data->set($property_name, $_SERVER[$env_key]);
-          }
-          elseif (getenv($env_key)) {
-            $data->set($property_name, getenv($env_key));
-          }
+            if (isset($_SERVER[$env_key])) {
+                $data->set($property_name, $_SERVER[$env_key]);
+            } elseif (getenv($env_key)) {
+                $data->set($property_name, getenv($env_key));
+            }
         }
 
         if (!$data->has($property_name)) {