diff --git a/src/Nest/DSL/CreateIndexDescriptor.cs b/src/Nest/DSL/CreateIndexDescriptor.cs
index 165cafe4a4a..418b86ac064 100644
--- a/src/Nest/DSL/CreateIndexDescriptor.cs
+++ b/src/Nest/DSL/CreateIndexDescriptor.cs
@@ -187,6 +187,16 @@ public CreateIndexDescriptor Analysis(Func<AnalysisDescriptor, AnalysisDescripto
 			return this;
 		}
 
+    /// <summary>
+    /// Set up similarity
+    /// </summary>
+    /// <param name="similaritySettings">similarity settings</param>
+    /// <returns>create index descriptor</returns>
+    public CreateIndexDescriptor SetSimilarity(SimilaritySettings similaritySettings)
+    {
+      this._IndexSettings.Similarity = similaritySettings;
+      return this;
+    }
 
 		ElasticsearchPathInfo<CreateIndexRequestParameters> IPathInfo<CreateIndexRequestParameters>.ToPathInfo(IConnectionSettingsValues settings)
 		{
diff --git a/src/Nest/DSL/Search/SortFieldDescriptor.cs b/src/Nest/DSL/Search/SortFieldDescriptor.cs
index 158356f277d..81b407a3c79 100644
--- a/src/Nest/DSL/Search/SortFieldDescriptor.cs
+++ b/src/Nest/DSL/Search/SortFieldDescriptor.cs
@@ -173,7 +173,7 @@ public SortFieldDescriptor<T> NestedPath(Expression<Func<T, object>> objectPath)
 		/// </summary>
 		public virtual SortFieldDescriptor<T> ToggleSort(bool ascending)
 		{
-			Self.Order = ascending ? SortOrder.Descending : SortOrder.Ascending;
+			Self.Order = ascending ? SortOrder.Ascending : SortOrder.Descending;
 			return this;
 		}
 	}