diff --git a/doc/agent/build.rst b/doc/agent/build.rst
index ea1134ae57f7ef5177ba26dcfb09babd7bcf4915..9a493b736e7614e9b86bcd69bba500ce3eb19f87 100644
--- a/doc/agent/build.rst
+++ b/doc/agent/build.rst
@@ -21,7 +21,7 @@ To build Guile locally, you first need to enable it when building contrib, then
 recompile contrib::
 
   cd daemon/contrib/native
-  ../bootstrap --enable-guile
+  ../bootstrap --enable-debug --enable-guile --enable-libunistring --enable-libffi --enable-libgc
   make list
   make fetch
   make -j