diff --git a/net/Makefile b/net/Makefile
index 878cf84cd446..b85e0bb095a1 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -46,6 +46,7 @@
     SUBDIR += dnswalk
     SUBDIR += domtools
     SUBDIR += echoping
+    SUBDIR += elsa
     SUBDIR += etherboot
     SUBDIR += ethereal
     SUBDIR += fping