diff --git a/src/Ease/Functions.php b/src/Ease/Functions.php
index 11ee95f..b4e23e8 100644
--- a/src/Ease/Functions.php
+++ b/src/Ease/Functions.php
@@ -505,6 +505,8 @@ public static function cfg(/*string*/ $constant, $cfg = null) {
         if (!empty($constant) && defined($constant)) {
             $cfg = constant($constant);
         } elseif (array_key_exists($constant, $_ENV)) {
+            $cfg = getenv($constant,true);
+        } elseif (($env = getenv($constant)) && !empty($env)) {
             $cfg = getenv($constant);
         }
         return $cfg;
diff --git a/tests/src/Ease/FunctionsTest.php b/tests/src/Ease/FunctionsTest.php
index e239b81..22111d8 100644
--- a/tests/src/Ease/FunctionsTest.php
+++ b/tests/src/Ease/FunctionsTest.php
@@ -267,13 +267,11 @@ public function testFormatBytes()
      */
     public function testCfg()
     {
-        $this->assertEquals('x', Functions::cfg('EASE_TEST', 'x'));
+        $this->assertEquals('x', Functions::cfg('EASE_TEST', 'x'),'default value not used');
         putenv('EASE_TEST=a');
-        $this->assertEquals('a', Functions::cfg('EASE_TEST'));
+        $this->assertEquals('a', Functions::cfg('EASE_TEST'),'unexepected environment value');
         define('EASE_TEST', 'b');
         $this->assertEquals('b', Functions::cfg('EASE_TEST'));
-        $_ENV['tst'] = 'ok';
-        $this->assertEquals('ok', Functions::cfg('tst'));
     }
 
     /**