diff --git a/src/Converter/Converter.php b/src/Converter/Converter.php
index c424d5da8..69445a228 100644
--- a/src/Converter/Converter.php
+++ b/src/Converter/Converter.php
@@ -96,7 +96,7 @@ public static function toLdap($value, $type = self::STANDARD)
                     if (is_string($value)) {
                         return $value;
                     } elseif (is_int($value) || is_float($value)) {
-                        return (string)$value;
+                        return (string) $value;
                     } elseif (is_bool($value)) {
                         return static::toldapBoolean($value);
                     } elseif (is_object($value)) {
diff --git a/src/Dn.php b/src/Dn.php
index e67b622f2..70a73543e 100644
--- a/src/Dn.php
+++ b/src/Dn.php
@@ -75,7 +75,7 @@ public static function fromString($dn, $caseFold = null)
         if (empty($dn)) {
             $dnArray = array();
         } else {
-            $dnArray = static::explodeDn((string)$dn);
+            $dnArray = static::explodeDn((string) $dn);
         }
         return new self($dnArray, $caseFold);
     }
diff --git a/src/Ldap.php b/src/Ldap.php
index 43692e2d3..e97d34ac9 100644
--- a/src/Ldap.php
+++ b/src/Ldap.php
@@ -952,7 +952,7 @@ protected function createCollection(Collection\DefaultIterator $iterator, $colle
         if ($collectionClass === null) {
             return new Collection($iterator);
         } else {
-            $collectionClass = (string)$collectionClass;
+            $collectionClass = (string) $collectionClass;
             if (!class_exists($collectionClass)) {
                 throw new Exception\LdapException(null,
                     "Class '$collectionClass' can not be found");
@@ -1108,7 +1108,7 @@ public static function prepareLdapEntryArray(array &$entry)
                     } elseif (!is_scalar($v)) {
                         throw new Exception\InvalidArgumentException('Only scalar values allowed in LDAP data');
                     } else {
-                        $v = (string)$v;
+                        $v = (string) $v;
                         if (strlen($v) == 0) {
                             unset($value[$i]);
                         } else {
@@ -1123,7 +1123,7 @@ public static function prepareLdapEntryArray(array &$entry)
                 } elseif (!is_scalar($value)) {
                     throw new Exception\InvalidArgumentException('Only scalar values allowed in LDAP data');
                 } else {
-                    $value = (string)$value;
+                    $value = (string) $value;
                     if (strlen($value) == 0) {
                         $entry[$key] = array();
                     } else {
diff --git a/src/Ldif/Encoder.php b/src/Ldif/Encoder.php
index 681f92cbf..b36800cb1 100644
--- a/src/Ldif/Encoder.php
+++ b/src/Ldif/Encoder.php
@@ -172,7 +172,7 @@ protected function _encode($value)
      */
     protected function encodeString($string, &$base64 = null)
     {
-        $string = (string)$string;
+        $string = (string) $string;
         if (!is_numeric($string) && empty($string)) {
             return '';
         }