1 files changed, 5 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/actions/Root.java b/src/main/java/com/google/devtools/build/lib/actions/Root.java
index 48abb2385e..81cab786ef 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/Root.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/Root.java
@@ -222,6 +222,11 @@ public final class Root implements Comparable<Root>, Serializable, SkylarkValue
 
   @Override
   public void repr(SkylarkPrinter printer) {
+    printer.append(isSourceRoot() ? "<source root>" : "<derived root>");
+  }
+
+  @Override
+  public void reprLegacy(SkylarkPrinter printer) {
     printer.append(toString());
   }
 }