diff --git a/src/proto/if_python.pro b/src/proto/if_python.pro
index 370c595..4ba977c 100644
--- a/src/proto/if_python.pro
+++ b/src/proto/if_python.pro
@@ -6,6 +6,7 @@
 void ex_pyfile __ARGS((exarg_T *eap));
 void python_buffer_free __ARGS((buf_T *buf));
 void python_window_free __ARGS((win_T *win));
+void python_tabpage_free __ARGS((tabpage_T *tab));
 void do_pyeval __ARGS((char_u *str, typval_T *rettv));
 void set_ref_in_python __ARGS((int copyID));
 /* vim: set ft=c : */