diff --git a/composer.json b/composer.json
index 7536b73..c67126f 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "description": "Parse/Compress Less to CSS",
     "keywords": ["less", "css", "php", "stylesheet", "less.js", "lesscss"],
     "homepage": "https://github.com/joffreydemetz/less2css/",
-    "version": "2.0.3",
+    "version": "2.0.4",
     "license": "MIT",
     
     "authors": [
diff --git a/src/Minifier/SimpleMinifier.php b/src/Minifier/SimpleMinifier.php
index 4ba51d4..17d5be9 100644
--- a/src/Minifier/SimpleMinifier.php
+++ b/src/Minifier/SimpleMinifier.php
@@ -25,7 +25,8 @@ public function compressCss()
     
     // Add space after :not(...)
     $css = preg_replace("/:not\(([^\)]+)\)([^\s:])/", ":not($1) $2", $css);
-    
+    $css = preg_replace("/:nth-(child|of-type)\(([^\)]+)\)([^\s:])/", ":nth-$1($2) $3", $css);
+    $css = preg_replace("/\)\s*and\s*\(/", ") and (", $css);
     $css = str_replace('--EURO--', '€', $css);
     
     return $css;
@@ -86,7 +87,7 @@ protected function cleanFirstPass($str)
   protected function cleanSecondPass($str)
   {
     // Normalize whitespace
-    $str = preg_replace("/\s+/", " ", $str);
+    $str = preg_replace("/\s\s+/", " ", $str);
     
     // Remove ; before }
     $str = preg_replace("/;(?=\s*})/", "$1", $str);