diff --git a/VERSION b/VERSION
index 9d4f823..963ed7c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.2.9
+1.2.10
diff --git a/flight/net/Response.php b/flight/net/Response.php
index 5e3a998..db66c16 100644
--- a/flight/net/Response.php
+++ b/flight/net/Response.php
@@ -236,8 +236,8 @@ class Response {
         }
 
         // Send content length
-        if( ($length = strlen($this->body)) > 0) {
-            header("Content-Length: $length");
+        if (($length = strlen($this->body)) > 0) {
+            header('Content-Length: '.$length);
         }
 
         return $this;