diff --git a/src/GaryJones/OAuth/HmacSha1.php b/src/GaryJones/OAuth/HmacSha1.php
index 47b21b8..3978dfb 100644
--- a/src/GaryJones/OAuth/HmacSha1.php
+++ b/src/GaryJones/OAuth/HmacSha1.php
@@ -12,7 +12,7 @@ class HmacSha1 extends SignatureMethod
 {
     public function getName()
     {
-        return "HMAC-SHA1";
+        return 'HMAC-SHA1';
     }
 
     public function buildSignature($request, $consumer, $token)
@@ -22,7 +22,7 @@ class HmacSha1 extends SignatureMethod
 
         $key_parts = array(
             $consumer->secret,
-            ($token) ? $token->secret : ""
+            ($token) ? $token->secret : ''
         );
 
         $key_parts = Util::urlencodeRfc3986($key_parts);
diff --git a/src/GaryJones/OAuth/Token.php b/src/GaryJones/OAuth/Token.php
index 9540d82..3701e36 100644
--- a/src/GaryJones/OAuth/Token.php
+++ b/src/GaryJones/OAuth/Token.php
@@ -23,10 +23,8 @@ class Token
      */
     public function toString()
     {
-        return "oauth_token=" .
-            Util::urlencodeRfc3986($this->key) .
-            "&oauth_token_secret=" .
-            Util::urlencodeRfc3986($this->secret);
+        return 'oauth_token=' . Util::urlencodeRfc3986($this->key) .
+            '&oauth_token_secret=' . Util::urlencodeRfc3986($this->secret);
     }
 
     public function __toString()