diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 845f7eaf..1925225e 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -55,8 +55,6 @@ LayergroupController.prototype.attributes = function(req, res) {
             self.app.req2params(req, this);
         },
         function retrieveFeatureAttributes(err) {
-            req.profiler.done('req2params');
-
             assert.ifError(err);
 
             var mapConfigProvider = new MapStoreMapConfigProvider(
@@ -103,10 +101,7 @@ LayergroupController.prototype.tileOrLayer = function (req, res) {
             self.app.req2params(req, this);
         },
         function mapController$getTileOrGrid(err) {
-            req.profiler.done('req2params');
-            if ( err ) {
-                throw err;
-            }
+            assert.ifError(err);
             self.tileBackend.getTile(
                 new MapStoreMapConfigProvider(self.mapStore, req.context.user, self.userLimitsApi, req.params),
                 req.params, this
@@ -192,7 +187,6 @@ LayergroupController.prototype.staticMap = function(req, res, width, height, zoo
             self.app.req2params(req, this);
         },
         function(err) {
-            req.profiler.done('req2params');
             assert.ifError(err);
             if (center) {
                 self.previewBackend.getImage(
diff --git a/lib/cartodb/server.js b/lib/cartodb/server.js
index ad4ce2f9..6cad6466 100644
--- a/lib/cartodb/server.js
+++ b/lib/cartodb/server.js
@@ -348,6 +348,7 @@ module.exports = function(serverOptions) {
                         _.extend(req.query, JSON.parse(result));
                         app.req2params(req, callback);
                     } catch (err) {
+                        req.profiler.done('req2params');
                         callback(new Error('Error parsing lzma as JSON: ' + err));
                     }
                 }
@@ -380,6 +381,7 @@ module.exports = function(serverOptions) {
                         'Cannot use map signature of user "' + req.params.signer + '" on db of user "' + user + '"'
                     );
                     err.http_status = 403;
+                    req.profiler.done('req2params');
                     callback(err);
                     return;
                 }
@@ -420,6 +422,7 @@ module.exports = function(serverOptions) {
             },
             function finishSetup(err) {
                 if ( err ) {
+                    req.profiler.done('req2params');
                     return callback(err, req);
                 }
 
@@ -432,6 +435,7 @@ module.exports = function(serverOptions) {
                     dbport: global.environment.postgres.port
                 });
 
+                req.profiler.done('req2params');
                 callback(null, req);
             }
         );
diff --git a/test/unit/cartodb/req2params.test.js b/test/unit/cartodb/req2params.test.js
index d0c83416..a46941a7 100644
--- a/test/unit/cartodb/req2params.test.js
+++ b/test/unit/cartodb/req2params.test.js
@@ -18,14 +18,17 @@ suite('req2params', function() {
       assert.ok(_.isFunction(server.req2params));
     });
 
-    function addContext(req) {
+    function prepareRequest(req) {
+        req.profiler = {
+            done: function() {}
+        };
         req.context = { user: 'localhost' };
         return req;
     }
 
     test('cleans up request', function(done){
       var req = {headers: { host:'localhost' }, query: {dbuser:'hacker',dbname:'secret'}};
-      server.req2params(addContext(req), function(err, req) {
+      server.req2params(prepareRequest(req), function(err, req) {
           if ( err ) { done(err); return; }
           assert.ok(_.isObject(req.query), 'request has query');
           assert.ok(!req.query.hasOwnProperty('dbuser'), 'dbuser was removed from query');
@@ -39,7 +42,7 @@ suite('req2params', function() {
 
     test('sets dbname from redis metadata', function(done){
       var req = {headers: { host:'localhost' }, query: {} };
-      server.req2params(addContext(req), function(err, req) {
+      server.req2params(prepareRequest(req), function(err, req) {
           if ( err ) { done(err); return; }
           //console.dir(req);
           assert.ok(_.isObject(req.query), 'request has query');
@@ -54,7 +57,7 @@ suite('req2params', function() {
 
     test('sets also dbuser for authenticated requests', function(done){
       var req = {headers: { host:'localhost' }, query: {map_key: '1234'} };
-      server.req2params(addContext(req), function(err, req) {
+      server.req2params(prepareRequest(req), function(err, req) {
           if ( err ) { done(err); return; }
           //console.dir(req);
           assert.ok(_.isObject(req.query), 'request has query');
@@ -63,8 +66,16 @@ suite('req2params', function() {
           assert.ok(!req.params.hasOwnProperty('interactivity'), 'request params do not have interactivity');
           assert.equal(req.params.dbname, test_database);
           assert.equal(req.params.dbuser, test_user);
- 
-          server.req2params(addContext({headers: { host:'localhost' }, query: {map_key: '1235'} }), function(err, req) {
+
+          req = {
+              headers: {
+                  host:'localhost'
+              },
+              query: {
+                  map_key: '1235'
+              }
+          };
+          server.req2params(prepareRequest(req), function(err, req) {
               // wrong key resets params to no user
               assert.ok(req.params.dbuser === test_pubuser, 'could inject dbuser ('+req.params.dbuser+')');
               done();
@@ -90,7 +101,7 @@ suite('req2params', function() {
                     lzma: data
                 }
             };
-            server.req2params(addContext(req), function(err, req) {
+            server.req2params(prepareRequest(req), function(err, req) {
                 if ( err ) {
                     return done(err);
                 }