diff --git a/lib/cartodb/middleware/lzma.js b/lib/cartodb/middleware/lzma.js
index d58f16cc..6655cdeb 100644
--- a/lib/cartodb/middleware/lzma.js
+++ b/lib/cartodb/middleware/lzma.js
@@ -1,8 +1,8 @@
 'use strict';
 
-var LZMA = require('lzma').LZMA;
+const LZMA = require('lzma').LZMA;
 
-var lzmaWorker = new LZMA();
+const lzmaWorker = new LZMA();
 
 module.exports = function lzmaMiddleware(req, res, next) {
     if (!req.query.hasOwnProperty('lzma')) {
diff --git a/lib/cartodb/middleware/req2params-middleware.js b/lib/cartodb/middleware/req2params-middleware.js
index dc67c117..d6e0a5d1 100644
--- a/lib/cartodb/middleware/req2params-middleware.js
+++ b/lib/cartodb/middleware/req2params-middleware.js
@@ -2,9 +2,6 @@ var assert = require('assert');
 var _ = require('underscore');
 var step = require('step');
 
-var LZMA = require('lzma').LZMA;
-var lzmaWorker = new LZMA();
-
 
 // Whitelist query parameters and attach format
 var REQUEST_QUERY_PARAMS_WHITELIST = [
@@ -20,7 +17,7 @@ var REQUEST_QUERY_PARAMS_WHITELIST = [
     'filters' // json
 ];
 
-// jshint maxcomplexity:10
+// jshint maxcomplexity:8
 /**
  * Whitelist input and get database name & default geometry type from
  * subdomain/user metadata held in CartoDB Redis
@@ -29,35 +26,6 @@ var REQUEST_QUERY_PARAMS_WHITELIST = [
  */
 module.exports = function req2paramsMiddleware (authApi, pgConnection) {
     return function req2params (req, res, next) {
-        if ( req.query.lzma ) {
-
-            // Decode (from base64)
-            var lzma = new Buffer(req.query.lzma, 'base64')
-                .toString('binary')
-                .split('')
-                .map(function(c) {
-                    return c.charCodeAt(0) - 128;
-                });
-
-
-            // Decompress
-            lzmaWorker.decompress(
-                lzma,
-                function(result) {
-                    req.profiler.done('lzma');
-                    try {
-                        delete req.query.lzma;
-                        _.extend(req.query, JSON.parse(result));
-                        req2params(req, res, next);
-                    } catch (err) {
-                        req.profiler.done('req2params');
-                        next(new Error('Error parsing lzma as JSON: ' + err));
-                    }
-                }
-            );
-            return;
-        }
-
         var allowedQueryParams = REQUEST_QUERY_PARAMS_WHITELIST;
         if (Array.isArray(req.context.allowedQueryParams)) {
             allowedQueryParams = allowedQueryParams.concat(req.context.allowedQueryParams);
diff --git a/lib/cartodb/server.js b/lib/cartodb/server.js
index a9ade8bb..cde0a468 100644
--- a/lib/cartodb/server.js
+++ b/lib/cartodb/server.js
@@ -4,8 +4,6 @@ var RedisPool = require('redis-mpool');
 var cartodbRedis = require('cartodb-redis');
 var _ = require('underscore');
 
-var lzmaMiddleware = require('./middleware/lzma');
-
 var controller = require('./controllers');
 
 var SurrogateKeysCache = require('./cache/surrogate_keys_cache');
@@ -46,6 +44,7 @@ var MapConfigAdapter = require('./models/mapconfig/adapter');
 
 var StatsBackend = require('./backends/stats');
 
+const lzmaMiddleware = require('./middleware/lzma');
 const errorMiddleware = require('./middleware/error-middleware');
 
 module.exports = function(serverOptions) {
diff --git a/test/unit/cartodb/req2params.test.js b/test/unit/cartodb/req2params.test.js
index 05e1f262..5edf36c4 100644
--- a/test/unit/cartodb/req2params.test.js
+++ b/test/unit/cartodb/req2params.test.js
@@ -1,6 +1,5 @@
 var assert = require('assert');
 var _ = require('underscore');
-require('../../support/test_helper');
 
 var RedisPool = require('redis-mpool');
 var cartodbRedis = require('cartodb-redis');
@@ -116,30 +115,17 @@ describe('req2params', function() {
                 config: config
             }
         };
-        test_helper.lzma_compress_to_base64(JSON.stringify(qo), 1, function(err, data) {
-            var req = {
-                headers: {
-                    host:'localhost'
-                },
-                query: {
-                    non_included: 'toberemoved',
-                    api_key: 'test',
-                    style: 'override',
-                    lzma: data
-                }
-            };
-            var res = {};
-            req2params(prepareRequest(req), res, function(err, req) {
-                if ( err ) {
-                    return done(err);
-                }
-                var query = req.params;
-                assert.deepEqual(qo.config, query.config);
-                assert.equal('test', query.api_key);
-                assert.equal(undefined, query.non_included);
-                done();
-            });
+        var res = {};
 
+        req2params(prepareRequest(req), res, function(err, req) {
+            if ( err ) {
+                return done(err);
+            }
+            var query = req.params;
+            assert.deepEqual(config, query.config);
+            assert.equal('test', query.api_key);
+            assert.equal(undefined, query.non_included);
+            done();
         });
     });