diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/cpp/BaseCppTest.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/cpp/BaseCppTest.java
index 780c64839..136c320cd 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/cpp/BaseCppTest.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/cpp/BaseCppTest.java
@@ -534,7 +534,7 @@ public class BaseCppTest implements RuntimeTestSupport {
 	}
 
 	private String runProcess(ProcessBuilder builder, String description, boolean showStderr) throws Exception {
-		System.out.println("BUILDER: " + builder.command() + " @ " + builder.directory().toString());
+		// System.out.println("BUILDER: " + builder.command() + " @ " + builder.directory().toString());
 		Process process = builder.start();
 		StreamVacuum stdoutVacuum = new StreamVacuum(process.getInputStream());
 		StreamVacuum stderrVacuum = new StreamVacuum(process.getErrorStream());