diff --git a/src/proto/quickfix.pro b/src/proto/quickfix.pro
index cc60edd..a2b6b76 100644
--- a/src/proto/quickfix.pro
+++ b/src/proto/quickfix.pro
@@ -9,6 +9,7 @@
 void ex_cwindow(exarg_T *eap);
 void ex_cclose(exarg_T *eap);
 void ex_copen(exarg_T *eap);
+void ex_cbottom(exarg_T *eap);
 linenr_T qf_current_entry(win_T *wp);
 int bt_quickfix(buf_T *buf);
 int bt_nofile(buf_T *buf);