diff --git a/runner/android_junit_runner/CHANGELOG.md b/runner/android_junit_runner/CHANGELOG.md
index 2556f4b2e..e92dee41c 100644
--- a/runner/android_junit_runner/CHANGELOG.md
+++ b/runner/android_junit_runner/CHANGELOG.md
@@ -8,6 +8,8 @@
 
 **New Features**
 
+* Make perfetto trace sections for tests more identifiable by prefixing with "test:" and using fully qualified class name. (b/204992764)
+
 **Breaking Changes**
 
 **API Changes**
diff --git a/runner/android_junit_runner/java/androidx/test/internal/runner/listener/TraceRunListener.java b/runner/android_junit_runner/java/androidx/test/internal/runner/listener/TraceRunListener.java
index 014ee45d5..09cc3db02 100644
--- a/runner/android_junit_runner/java/androidx/test/internal/runner/listener/TraceRunListener.java
+++ b/runner/android_junit_runner/java/androidx/test/internal/runner/listener/TraceRunListener.java
@@ -36,7 +36,7 @@ public void testStarted(Description description) throws Exception {
     String testClassName =
         description.getTestClass() != null ? description.getTestClass().getSimpleName() : "None";
     String methodName = description.getMethodName() != null ? description.getMethodName() : "None";
-    Trace.beginSection(sanitizeSpanName(testClassName + "#" + methodName));
+    Trace.beginSection(sanitizeSpanName("test:" + testClassName + "#" + methodName));
   }
 
   @Override