diff --git a/lib/torque/provider/json.js b/lib/torque/provider/json.js
index 68bebc2..e69c79c 100644
--- a/lib/torque/provider/json.js
+++ b/lib/torque/provider/json.js
@@ -121,8 +121,9 @@ var Profiler = require('../profiler');
         var dates = row.dates__uint16;
         var val_keys = Object.keys(row).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
         var val_arr = []
+
         val_keys.forEach(function(key){
-          var i = key.match(/vals__uint8_(\d+)/)[1]
+          var i = (key=='vals_uint8' ? 0 :  key.match(/vals__uint8_(\d+)/)[1])
           val_arr[i] = row[key];
         })
 
@@ -499,7 +500,7 @@ var Profiler = require('../profiler');
         "layers": [{
           "type": "cartodb",
           "options": {
-            "cartocss_version": "2.1.1", 
+            "cartocss_version": "2.1.1",
             "cartocss": "#layer {}",
             "sql": this.getSQL()
           }