diff --git a/dev/core/src/com/google/gwt/dev/util/log/speedtracer/SpeedTracerLogger.java b/dev/core/src/com/google/gwt/dev/util/log/speedtracer/SpeedTracerLogger.java
index 69c0c99e86..8efe985aae 100644
--- a/dev/core/src/com/google/gwt/dev/util/log/speedtracer/SpeedTracerLogger.java
+++ b/dev/core/src/com/google/gwt/dev/util/log/speedtracer/SpeedTracerLogger.java
@@ -707,6 +707,9 @@ private SpeedTracerLogger() {
     enabled = fileLoggingEnabled || DashboardNotifierFactory.areNotificationsEnabled();
 
     if (enabled) {
+      System.err.println("SpeedTracerLogging is deprecated, and may be removed in a future " +
+              "release. Please see https://github.com/gwtproject/gwt/issues/10007 for more " +
+              "information.");
       if (fileLoggingEnabled) {
         // Allow a system property to override the default output format
         Format format = Format.HTML;