diff --git a/tools/src/main/java/org/bitcoinj/tools/BuildCheckpoints.java b/tools/src/main/java/org/bitcoinj/tools/BuildCheckpoints.java
index 85617ea6..f6902d42 100644
--- a/tools/src/main/java/org/bitcoinj/tools/BuildCheckpoints.java
+++ b/tools/src/main/java/org/bitcoinj/tools/BuildCheckpoints.java
@@ -125,8 +125,8 @@ public class BuildCheckpoints {
             public void notifyNewBestBlock(StoredBlock block) throws VerificationException {
                 int height = block.getHeight();
                 if (height % params.getInterval() == 0 && block.getHeader().getTimeSeconds() <= timeAgo) {
-                    System.out.println(String.format("Checkpointing block %s at height %d",
-                            block.getHeader().getHash(), block.getHeight()));
+                    System.out.println(String.format("Checkpointing block %s at height %d, time %s",
+                            block.getHeader().getHash(), block.getHeight(), Utils.dateTimeFormat(block.getHeader().getTime())));
                     checkpoints.put(height, block);
                 }
             }