diff --git a/lib/roken/parse_time.h b/lib/roken/parse_time.h
index 7b5d4d4f1..89a8af842 100644
--- a/lib/roken/parse_time.h
+++ b/lib/roken/parse_time.h
@@ -47,4 +47,7 @@ parse_time (const char *s, const char *def_unit);
 size_t
 unparse_time (int t, char *s, size_t len);
 
+void
+print_time_table (FILE *f);
+
 #endif /* __PARSE_TIME_H__ */