1 files changed, 1 insertions, 1 deletions
diff --git a/src/stream.h b/src/stream.h
index fac62f3d..c35eef23 100644
--- a/src/stream.h
+++ b/src/stream.h
@@ -62,7 +62,7 @@ namespace ledger {
  * Cline's "C++ FAQ Lite". Arguably this should be three different
  * classes, but that introduces additional unneeded complications.
  */
-class output_stream_t
+class output_stream_t : public noncopyable
 {
 private:
   int pipe_to_pager_fd;