diff --git a/src/proto/netbeans.pro b/src/proto/netbeans.pro
index 75d0149..71a5ec4 100644
--- a/src/proto/netbeans.pro
+++ b/src/proto/netbeans.pro
@@ -1,25 +1,25 @@
 /* netbeans.c */
-void messageFromNetbeansW32 __ARGS((void));
-int isNetbeansBuffer __ARGS((buf_T *bufp));
-int isNetbeansModified __ARGS((buf_T *bufp));
-void netbeans_end __ARGS((void));
-void ex_nbkey __ARGS((exarg_T *eap));
-void netbeans_beval_cb __ARGS((BalloonEval *beval, int state));
-void netbeans_startup_done __ARGS((void));
-void netbeans_send_disconnect __ARGS((void));
-void netbeans_frame_moved __ARGS((int new_x, int new_y));
-void netbeans_file_activated __ARGS((buf_T *bufp));
-void netbeans_file_opened __ARGS((buf_T *bufp));
-void netbeans_file_closed __ARGS((buf_T *bufp));
-void netbeans_inserted __ARGS((buf_T *bufp, linenr_T linenr, colnr_T col, char_u *txt, int newlen));
-void netbeans_removed __ARGS((buf_T *bufp, linenr_T linenr, colnr_T col, long len));
-void netbeans_unmodified __ARGS((buf_T *bufp));
-void netbeans_button_release __ARGS((int button));
-void netbeans_keycommand __ARGS((int key));
-void netbeans_save_buffer __ARGS((buf_T *bufp));
-void netbeans_deleted_all_lines __ARGS((buf_T *bufp));
-int netbeans_is_guarded __ARGS((linenr_T top, linenr_T bot));
-void netbeans_draw_multisign_indicator __ARGS((int row));
-void netbeans_draw_multisign_indicator __ARGS((int row));
-void netbeans_gutter_click __ARGS((linenr_T lnum));
+extern void messageFromNetbeansW32 __ARGS((void));
+extern int isNetbeansBuffer __ARGS((buf_T *bufp));
+extern int isNetbeansModified __ARGS((buf_T *bufp));
+extern void netbeans_end __ARGS((void));
+extern void ex_nbkey __ARGS((exarg_T *eap));
+extern void netbeans_beval_cb __ARGS((BalloonEval *beval, int state));
+extern void netbeans_startup_done __ARGS((void));
+extern void netbeans_send_disconnect __ARGS((void));
+extern void netbeans_frame_moved __ARGS((int new_x, int new_y));
+extern void netbeans_file_activated __ARGS((buf_T *bufp));
+extern void netbeans_file_opened __ARGS((buf_T *bufp));
+extern void netbeans_file_closed __ARGS((buf_T *bufp));
+extern void netbeans_inserted __ARGS((buf_T *bufp, linenr_T linenr, colnr_T col, char_u *txt, int newlen));
+extern void netbeans_removed __ARGS((buf_T *bufp, linenr_T linenr, colnr_T col, long len));
+extern void netbeans_unmodified __ARGS((buf_T *bufp));
+extern void netbeans_button_release __ARGS((int button));
+extern void netbeans_keycommand __ARGS((int key));
+extern void netbeans_save_buffer __ARGS((buf_T *bufp));
+extern void netbeans_deleted_all_lines __ARGS((buf_T *bufp));
+extern int netbeans_is_guarded __ARGS((linenr_T top, linenr_T bot));
+extern void netbeans_draw_multisign_indicator __ARGS((int row));
+extern void netbeans_draw_multisign_indicator __ARGS((int row));
+extern void netbeans_gutter_click __ARGS((linenr_T lnum));
 /* vim: set ft=c : */