diff --git a/lib/cartodb/controllers/base.js b/lib/cartodb/controllers/base.js
index 5a44500b..ac3ac11c 100644
--- a/lib/cartodb/controllers/base.js
+++ b/lib/cartodb/controllers/base.js
@@ -21,6 +21,7 @@ var REQUEST_QUERY_PARAMS_WHITELIST = [
     'bins', // number
     'start', // number
     'end', // number
+    'column_type', // string
     // widgets search
     'q'
 ];