diff --git a/compiler/cpp/src/generate/t_csharp_generator.cc b/compiler/cpp/src/generate/t_csharp_generator.cc
index fefdce5..586ab75 100644
--- a/compiler/cpp/src/generate/t_csharp_generator.cc
+++ b/compiler/cpp/src/generate/t_csharp_generator.cc
@@ -1298,7 +1298,7 @@
           << normalize_name((*f_iter)->get_name()) << ") || (";
     }
     t_type* ttype = (*f_iter)->get_type();
-    if (ttype->is_container()) {
+    if (ttype->is_container() || (ttype->is_base_type() && (((t_base_type*)ttype)->is_binary()))) {
       out << "TCollections.Equals(";
     } else {
       out << "System.Object.Equals(";
diff --git a/lib/csharp/test/ThriftTest/TestClient.cs b/lib/csharp/test/ThriftTest/TestClient.cs
index fc3e418..a0ceb15 100644
--- a/lib/csharp/test/ThriftTest/TestClient.cs
+++ b/lib/csharp/test/ThriftTest/TestClient.cs
@@ -268,6 +268,19 @@
                 Console.Write("testBinary(" + BytesToHex(binOut) + "): "+e.Message);
             }
 
+            // binary equals? only with hashcode option enabled ...
+            if( typeof(CrazyNesting).GetMethod("Equals").DeclaringType == typeof(CrazyNesting)) 
+            {
+                CrazyNesting one = new CrazyNesting();
+                CrazyNesting two = new CrazyNesting();
+                one.String_field = "crazy";
+                two.String_field = "crazy";
+                one.Binary_field = new byte[10] { 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0xFF };
+                two.Binary_field = new byte[10] { 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0xFF };
+                if (!one.Equals(two))
+                    throw new Exception("CrazyNesting.Equals failed");
+            }
+
             Console.Write("testStruct({\"Zero\", 1, -3, -5})");
             Xtruct o = new Xtruct();
             o.String_thing = "Zero";