diff --git a/plab/flatten/flatten.go b/plab/flatten/flatten.go
index af95aa8ac5f0baedc44cf22382f448f990aab093..94de9b2256769a2fcced25b635d18b6e2ed4a0b3 100644
--- a/plab/flatten/flatten.go
+++ b/plab/flatten/flatten.go
@@ -18,6 +18,8 @@ var Flatten = helpers.Subcommand{
 		entry := args[0]
 		out := args[len(args)-1]
 
+		fmt.Println("flattening", entry)
+
 		_, _ = entry, out
 
 		funcFiles := args[1 : len(args)-1]
@@ -40,6 +42,7 @@ var Flatten = helpers.Subcommand{
 		if e != nil {
 			panic(e)
 		}
+		fmt.Println("flattened", entry)
 	},
 	Help: "flaten a .tex file",
 }