diff --git a/etc/noosfero/varnish-noosfero.vcl b/etc/noosfero/varnish-noosfero.vcl
index 4aff0aa..ede7de7 100644
--- a/etc/noosfero/varnish-noosfero.vcl
+++ b/etc/noosfero/varnish-noosfero.vcl
@@ -3,13 +3,11 @@ sub vcl_recv {
     if (req.http.Cookie) {
       # We only care about the "_noosfero_session.*" cookie, used for
       # authentication.
-      if (req.http.Cookie ~ "_noosfero_session.*" ) {
-           return (pass);
+      if (req.http.Cookie !~ "_noosfero_session.*" ) {
+        # strip all cookies
+        unset req.http.Cookie;
       }
-      # Else strip all cookies
-      unset req.http.Cookie;
     }
-  }
 }
 
 sub vcl_error {
diff --git a/test/integration/varnish_conf_test.rb b/test/integration/varnish_conf_test.rb
new file mode 100644
index 0000000..4bbc85a
--- /dev/null
+++ b/test/integration/varnish_conf_test.rb
@@ -0,0 +1,9 @@
+require 'test/unit'
+
+class VarnishConfTest < Test::Unit::TestCase
+
+   def test_not_use_return_in_varnish_noosfero
+    assert !system('grep "return.*pass" etc/noosfero/varnish-noosfero.vcl')
+  end
+
+end
--
libgit2 0.21.2