diff --git a/changelog/unreleased/issue-2469 b/changelog/unreleased/issue-2469
new file mode 100644
index 000000000..5cad5cd4d
--- /dev/null
+++ b/changelog/unreleased/issue-2469
@@ -0,0 +1,5 @@
+Bugfix: Fix incorrect bytes stats in `diff` command
+
+In some cases, the wrong number of bytes (e.g. 16777215.998 TiB) were reported by the `diff` command. This is now fixed.
+
+https://github.com/restic/restic/issues/2469
diff --git a/cmd/restic/cmd_diff.go b/cmd/restic/cmd_diff.go
index f37c2c7ef..773ff64f3 100644
--- a/cmd/restic/cmd_diff.go
+++ b/cmd/restic/cmd_diff.go
@@ -66,7 +66,7 @@ type Comparer struct {
 type DiffStat struct {
 	Files, Dirs, Others  int
 	DataBlobs, TreeBlobs int
-	Bytes                int
+	Bytes                uint64
 }
 
 // Add adds stats information for node to s.
@@ -141,7 +141,7 @@ func updateBlobs(repo restic.Repository, blobs restic.BlobSet, stats *DiffStat)
 			continue
 		}
 
-		stats.Bytes += int(size)
+		stats.Bytes += uint64(size)
 	}
 }