diff --git a/contributors.txt b/contributors.txt
index 54ff875dc..d081c5482 100644
--- a/contributors.txt
+++ b/contributors.txt
@@ -215,3 +215,4 @@ YYYY/MM/DD, github id, Full name, email
 2019/02/06, ralucado, Cristina Raluca Vijulie, ralucris.v[at]gmail[dot]com
 2019/03/13, base698, Justin Thomas, justin.thomas1@gmail.com
 2019/03/18, carlodri, Carlo Dri, carlo.dri@gmail.com
+2019/05/02, askingalot, Andy Collins, askingalot@gmail.com
diff --git a/doc/csharp-target.md b/doc/csharp-target.md
index 40be51840..a869a82f6 100644
--- a/doc/csharp-target.md
+++ b/doc/csharp-target.md
@@ -30,7 +30,7 @@ Let's suppose that your grammar is named `MyGrammar`. The tool will generate for
 
 Now a fully functioning code might look like the following for start rule `StartRule`:
 
-```
+```csharp
 using Antlr4.Runtime;
 using Antlr4.Runtime.Tree;
      
@@ -59,7 +59,7 @@ Let's suppose your MyGrammar grammar comprises 2 rules: "key" and "value".
 
 The antlr4 tool will have generated the following listener (only partial code shown here): 
 
-```
+```csharp
 interface IMyGrammarParserListener : IParseTreeListener {
       void EnterKey (MyGrammarParser.KeyContext context);
       void ExitKey (MyGrammarParser.KeyContext context);
@@ -70,7 +70,7 @@ interface IMyGrammarParserListener : IParseTreeListener {
  
 In order to provide custom behavior, you might want to create the following class:
  
-```
+```csharp
 class KeyPrinter : MyGrammarBaseListener {
     // override default listener behavior
     void ExitKey (MyGrammarParser.KeyContext context) {
@@ -82,7 +82,7 @@ class KeyPrinter : MyGrammarBaseListener {
 In order to execute this listener, you would simply add the following lines to the above code:
  
  
-```
+```csharp
 ...
 IParseTree tree = parser.StartRule() - only repeated here for reference
 KeyPrinter printer = new KeyPrinter();