diff --git a/sparsify/sparsify.ml b/sparsify/sparsify.ml
index e79fe7896..80c875c4c 100644
--- a/sparsify/sparsify.ml
+++ b/sparsify/sparsify.ml
@@ -17,7 +17,6 @@
  *)
 
 open Unix
-open Scanf
 open Printf
 
 open Common_gettext.Gettext