diff --git a/pkg/api/pluginproxy/pluginproxy.go b/pkg/api/pluginproxy/pluginproxy.go
index 92d07988b64..21d40ecb948 100644
--- a/pkg/api/pluginproxy/pluginproxy.go
+++ b/pkg/api/pluginproxy/pluginproxy.go
@@ -88,7 +88,7 @@ func NewApiPluginProxy(ctx *middleware.Context, proxyPath string, route *plugins
 			}
 
 			for key, value := range headers {
-				log.Info("setting key %v value %v", key, value[0])
+				log.Trace("setting key %v value %v", key, value[0])
 				req.Header.Set(key, value[0])
 			}
 		}
diff --git a/public/app/core/services/datasource_srv.js b/public/app/core/services/datasource_srv.js
index 32bc9a39725..378cfa2d9d5 100644
--- a/public/app/core/services/datasource_srv.js
+++ b/public/app/core/services/datasource_srv.js
@@ -66,14 +66,17 @@ function (angular, _, coreModule, config) {
     };
 
     this.getAnnotationSources = function() {
-      return _.reduce(config.datasources, function(memo, value) {
+      var sources = [];
 
+      this.addDataSourceVariables(sources);
+
+      _.each(config.datasources, function(value) {
         if (value.meta && value.meta.annotations) {
-          memo.push(value);
+          sources.push(value);
         }
+      });
 
-        return memo;
-      }, []);
+      return sources;
     };
 
     this.getMetricSources = function(options) {
@@ -90,24 +93,7 @@ function (angular, _, coreModule, config) {
       });
 
       if (!options || !options.skipVariables) {
-        // look for data source variables
-        for (var i = 0; i < templateSrv.variables.length; i++) {
-          var variable = templateSrv.variables[i];
-          if (variable.type !== 'datasource') {
-            continue;
-          }
-
-          var first = variable.current.value;
-          var ds = config.datasources[first];
-
-          if (ds) {
-            metricSources.push({
-              name: '$' + variable.name,
-              value: '$' + variable.name,
-              meta: ds.meta,
-            });
-          }
-        }
+        this.addDataSourceVariables(metricSources);
       }
 
       metricSources.sort(function(a, b) {
@@ -123,6 +109,27 @@ function (angular, _, coreModule, config) {
       return metricSources;
     };
 
+    this.addDataSourceVariables = function(list) {
+      // look for data source variables
+      for (var i = 0; i < templateSrv.variables.length; i++) {
+        var variable = templateSrv.variables[i];
+        if (variable.type !== 'datasource') {
+          continue;
+        }
+
+        var first = variable.current.value;
+        var ds = config.datasources[first];
+
+        if (ds) {
+          list.push({
+            name: '$' + variable.name,
+            value: '$' + variable.name,
+            meta: ds.meta,
+          });
+        }
+      }
+    };
+
     this.init();
   });
 });
diff --git a/public/app/features/annotations/editor_ctrl.js b/public/app/features/annotations/editor_ctrl.js
index ca754b094a8..c37592cc905 100644
--- a/public/app/features/annotations/editor_ctrl.js
+++ b/public/app/features/annotations/editor_ctrl.js
@@ -30,7 +30,7 @@ function (angular, _, $) {
     $scope.datasourceChanged = function() {
       return datasourceSrv.get($scope.currentAnnotation.datasource).then(function(ds) {
         $scope.currentDatasource = ds;
-        $scope.currentAnnotation.datasource = ds.name;
+        $scope.currentAnnotation.datasource = $scope.currentAnnotation.datasource;
       });
     };