diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d76ecd119..5f5bcf153 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -125,5 +125,6 @@ Unlike Python, C# has different ways to do the same thing, which causes endless
   * **type** vs. **var**: always use 'int x' instead of 'var x'. Less guess work. Less magic. If we **always** use the proper type then we have to waste no brain cycles on unnecessary decision making.
   * **if** vs. **switch**: any if statement could be converted to switch and back. Again, let's not have endless discussions and use if unless _switch_ makes overwhelmingly much sense. Python doesn't have switch either, they don't have those discussions and pull requests over there.
   * **int** vs. **Int32**: use int instead of Int32, double instead of Double, string instead of String and so on. We won't convert all ints to Int32, so it makes most sense to never use Int32 anywhere and avoid time wasting discussions.
+  * **Empty Class Bodies ({} vs. { })**: please use 'class MyMessage : EmptyMessage {}' instead of 'class MyMessage : EmptyMessage { }'. For the same reason that we use no white space inbetween parameterless function defintions like void Start() vs. void Start( ).
 
 Thanks.