diff --git a/contributors.txt b/contributors.txt
index ee58ff694..1f6cc0328 100644
--- a/contributors.txt
+++ b/contributors.txt
@@ -240,4 +240,5 @@ YYYY/MM/DD, github id, Full name, email
 2020/02/02, carocad, Camilo Roca, carocad@unal.edu.co
 2020/02/10, julibert, Julián Bermúdez Ortega, julibert.dev@gmail.com
 2020/02/21, StochasticTinkr, Daniel Pitts, github@coloraura.com
-2020/03/17, XsongyangX, Song Yang, songyang1218@gmail.com
\ No newline at end of file
+2020/03/17, XsongyangX, Song Yang, songyang1218@gmail.com
+2020/04/07, deniskyashif, Denis Kyashif, denis.kyashif@gmail.com
\ No newline at end of file
diff --git a/runtime/CSharp/runtime/CSharp/Antlr4.Runtime/AntlrInputStream.cs b/runtime/CSharp/runtime/CSharp/Antlr4.Runtime/AntlrInputStream.cs
index a35dc3452..023dd671e 100644
--- a/runtime/CSharp/runtime/CSharp/Antlr4.Runtime/AntlrInputStream.cs
+++ b/runtime/CSharp/runtime/CSharp/Antlr4.Runtime/AntlrInputStream.cs
@@ -48,8 +48,7 @@ namespace Antlr4.Runtime
                 System.Diagnostics.Debug.Assert(LA(1) == IntStreamConstants.EOF);
                 throw new InvalidOperationException("cannot consume EOF");
             }
-            //System.out.println("prev p="+p+", c="+(char)data[p]);
-            if (p < n)
+            else
             {
                 p++;
             }