diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index cdd7cceff..16e8db57f 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,3 +1,7 @@
+2000-12-16  Keisuke Nishida  <kxn30@po.cwru.edu>
+
+	* symbols.h (scm_symbols_prehistory): Added prototype.
+
 2000-12-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>
 
 	* environments.[ch] (scm_system_environment):  New variable, will
diff --git a/libguile/symbols.h b/libguile/symbols.h
index bad3cbcd4..94ebc3c20 100644
--- a/libguile/symbols.h
+++ b/libguile/symbols.h
@@ -103,6 +103,7 @@ extern SCM scm_symbol_hash (SCM s);
 extern SCM scm_builtin_bindings (void);
 extern SCM scm_gensym (SCM prefix);
 extern SCM scm_gentemp (SCM prefix, SCM obarray);
+extern void scm_symbols_prehistory (void);
 extern void scm_init_symbols (void);