diff --git a/C/globals.c b/C/globals.c
index 59aaf07ca..33e8912d2 100644
--- a/C/globals.c
+++ b/C/globals.c
@@ -1942,7 +1942,7 @@ p_nb_beam(void)
 static Int
 p_nb_beam_close(void)
 {
-  p_nb_heap_close();
+  return p_nb_heap_close();
 }