diff --git a/src/main/java/org/junit/internal/runners/ErrorReportingRunner.java b/src/main/java/org/junit/internal/runners/ErrorReportingRunner.java
index 20a0431b92fe..227f5a03bac0 100644
--- a/src/main/java/org/junit/internal/runners/ErrorReportingRunner.java
+++ b/src/main/java/org/junit/internal/runners/ErrorReportingRunner.java
@@ -37,6 +37,10 @@ public ErrorReportingRunner(Throwable cause, Class<?>... testClasses) {
     @Override
     public Description getDescription() {
         Description description = Description.createSuiteDescription(classNames);
+        /*
+         * Use an indexed loop instead of a foreach: That avoids declaring a variable that some
+         * tools will see as "unused."
+         */
         for (int i = 0; i < causes.size(); i++) {
             description.addChild(describeCause());
         }