diff --git a/t/pt-table-checksum/samples/chunkidx001.txt b/t/pt-table-checksum/samples/chunkidx001.txt
index f12d5e29..013df467 100644
--- a/t/pt-table-checksum/samples/chunkidx001.txt
+++ b/t/pt-table-checksum/samples/chunkidx001.txt
@@ -1,3 +1,5 @@
+Checking if all tables can be checksummed ...
+Starting checksum ...
 --
 -- issue_519.t
 --
diff --git a/t/pt-table-checksum/samples/chunkidx002.txt b/t/pt-table-checksum/samples/chunkidx002.txt
index 9f462fe5..6f504b70 100644
--- a/t/pt-table-checksum/samples/chunkidx002.txt
+++ b/t/pt-table-checksum/samples/chunkidx002.txt
@@ -1,3 +1,5 @@
+Checking if all tables can be checksummed ...
+Starting checksum ...
 --
 -- issue_519.t
 --
diff --git a/t/pt-table-checksum/samples/chunkidx003.txt b/t/pt-table-checksum/samples/chunkidx003.txt
index 1fb3a2f5..571bce2f 100644
--- a/t/pt-table-checksum/samples/chunkidx003.txt
+++ b/t/pt-table-checksum/samples/chunkidx003.txt
@@ -1,3 +1,5 @@
+Checking if all tables can be checksummed ...
+Starting checksum ...
 --
 -- issue_519.t
 --
diff --git a/t/pt-table-checksum/samples/chunkidx005.txt b/t/pt-table-checksum/samples/chunkidx005.txt
index e4b0d417..1a8f5621 100644
--- a/t/pt-table-checksum/samples/chunkidx005.txt
+++ b/t/pt-table-checksum/samples/chunkidx005.txt
@@ -1,3 +1,5 @@
+Checking if all tables can be checksummed ...
+Starting checksum ...
 --
 -- sakila.city
 --
diff --git a/t/pt-table-checksum/samples/n-chunk-index-cols.txt b/t/pt-table-checksum/samples/n-chunk-index-cols.txt
index b8d9e17e..7ca96580 100644
--- a/t/pt-table-checksum/samples/n-chunk-index-cols.txt
+++ b/t/pt-table-checksum/samples/n-chunk-index-cols.txt
@@ -1,3 +1,5 @@
+Checking if all tables can be checksummed ...
+Starting checksum ...
 --
 -- sakila.rental
 --
diff --git a/t/pt-table-checksum/samples/not-using-pk-bug.out b/t/pt-table-checksum/samples/not-using-pk-bug.out
index f9640d33..748a3b5d 100644
--- a/t/pt-table-checksum/samples/not-using-pk-bug.out
+++ b/t/pt-table-checksum/samples/not-using-pk-bug.out
@@ -1,3 +1,5 @@
+Checking if all tables can be checksummed ...
+Starting checksum ...
 --
 -- test.multi_resource_apt
 --