diff --git a/libguile/init.c b/libguile/init.c
index 0e91a7559..2001e7910 100644
--- a/libguile/init.c
+++ b/libguile/init.c
@@ -590,6 +590,7 @@ scm_init_guile_1 (SCM_STACKITEM *base)
 
   scm_init_rdelim ();
   scm_init_rw ();
+  scm_init_extensions ();
 
   scm_load_startup_files ();
 }