Prevent auto complete of generic container field moves line below to current line

If I start out with this piece of code,

class TestClass
 {
     Dictionary<string, int> dic = new Dictionary<string, int>();
 }

and auto-complete a List<> to the line above the Dictionary field,

class TestClass
 {

     Lis
     Dictionary<string, int> dic = new Dictionary<string, int>();
 }

auto complete moves everything to the same line =>

class TestClass
 {
     List<> Dictionary<string, int> dic = new Dictionary<string, int>();
 }

I want the dictionary to stay on it's own line:

class TestClass
 {

     List<>
     Dictionary<string, int> dic = new Dictionary<string, int>();
 }

What setting(s) should I change??