diff --git a/lib/classes/datasource.js b/lib/classes/datasource.js
index 0da07e62d66b7..9789d63787ab3 100644
--- a/lib/classes/datasource.js
+++ b/lib/classes/datasource.js
@@ -52,6 +52,7 @@ module.exports = class Datasource extends TimelionFunction {
       if (args.byName.offset) {
         config.time = _.cloneDeep(tlConfig.time);
         config.time.from = offsetTime(config.time.from, args.byName.offset);
+        config.time.to = offsetTime(config.time.to, args.byName.offset);
       }
 
       return originalFunction(args, config).then(function (seriesList) {
@@ -79,6 +80,10 @@ module.exports = class Datasource extends TimelionFunction {
     }
 
     super(name, config);
+
+    // You  need to call _fn if calling up a datasource from another datasource,
+    // otherwise teh series will end up being fit and offset twice.
+    this._fn = originalFunction;
     this.datasource = true;
     this.cacheKey = function (item) {
       return item.text;
diff --git a/package.json b/package.json
index 9c21f865390c8..e64e62d3dc51f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "timelion",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "dependencies": {
     "body-parser": "^1.12.0",
     "boom": "^2.8.0",
diff --git a/series_functions/worldbank_indicators.js b/series_functions/worldbank_indicators.js
index c8fe81437de94..7ad35fe2545a4 100644
--- a/series_functions/worldbank_indicators.js
+++ b/series_functions/worldbank_indicators.js
@@ -30,7 +30,7 @@ module.exports = new Datasource ('worldbank_indicators', {
       var code = 'countries/' + country + '/indicators/' + config.indicator;
       var wbArgs = [code];
       wbArgs.byName = {code: code};
-      return worldbank.fn(wbArgs, tlConfig);
+      return worldbank._fn(wbArgs, tlConfig);
     });
 
     return Promise.map(seriesLists, function (seriesList) {