diff --git a/Include/node.h b/Include/node.h
index d01128b..9730e57 100644
--- a/Include/node.h
+++ b/Include/node.h
@@ -9,6 +9,7 @@
 
 extern node *newnode PROTO((int type));
 extern node *addchild PROTO((node *n, int type, char *str));
+extern void freenode PROTO((node *n));
 
 /* Node access functions */
 #define NCH(n)		((n)->n_nchildren)