diff --git a/app/src/processing/app/preproc/PdeEmitter.java b/app/src/processing/app/preproc/PdeEmitter.java
index cfbeaecfe..f4634f32e 100644
--- a/app/src/processing/app/preproc/PdeEmitter.java
+++ b/app/src/processing/app/preproc/PdeEmitter.java
@@ -25,6 +25,7 @@ import java.io.*;
  * tree - the ROOT_ID node that represents a Java file.
  */
 
+@SuppressWarnings("unused")
 public class PdeEmitter implements PdeTokenTypes
 {
   private PrintStream out = System.out;