diff --git a/doc/csharp-target.md b/doc/csharp-target.md
index 90b4a63f6..9158b0211 100644
--- a/doc/csharp-target.md
+++ b/doc/csharp-target.md
@@ -35,7 +35,7 @@ using Antlr4.Runtime;
      
 public void MyParseMethod() {
       String input = "your text to parse here";
-      ICharStream stream = CharStreams.fromString(input);
+      ICharStream stream = CharStreams.fromstring(input);
       ITokenSource lexer = new MyGrammarLexer(stream);
       ITokenStream tokens = new CommonTokenStream(lexer);
       MyGrammarParser parser = new MyGrammarParser(tokens);