diff --git a/pkg/noun/xtract.c b/pkg/noun/xtract.c
index a869eb9547..1ce799f9fa 100644
--- a/pkg/noun/xtract.c
+++ b/pkg/noun/xtract.c
@@ -5,6 +5,8 @@
 #include "manage.h"
 #include "retrieve.h"
 
+u3_atom
+u3x_atom(u3_noun a);
 u3_noun
 u3x_good(u3_weak som);