diff --git a/grok_config.h b/grok_config.h
index 0eca357..3c141e6 100644
--- a/grok_config.h
+++ b/grok_config.h
@@ -21,6 +21,7 @@ struct config {
 
 void conf_init(struct config *conf);
 void conf_new_program(struct config *conf);
+void conf_new_patternfile(struct config *conf);
 void conf_new_input(struct config *conf);
 void conf_new_input_process(struct config *conf, char *cmd);
 void conf_new_input_file(struct config *conf, char *filename);