diff --git a/src/proto/misc1.pro b/src/proto/misc1.pro
index 9f986d7..496d2e4 100644
--- a/src/proto/misc1.pro
+++ b/src/proto/misc1.pro
@@ -103,4 +103,5 @@
 char_u *get_cmd_output __ARGS((char_u *cmd, char_u *infile, int flags, int *ret_len));
 void FreeWild __ARGS((int count, char_u **files));
 int goto_im __ARGS((void));
+char_u *get_isolated_shell_name __ARGS((void));
 /* vim: set ft=c : */