1 files changed, 2 insertions, 0 deletions

diff --git a/src/lisp.h b/src/lisp.h
index ca271863b26..8adbaea87e9 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -2244,6 +2244,8 @@ extern Lisp_Object Vinhibit_quit, Qinhibit_quit, Vquit_flag;
 extern Lisp_Object Vmocklisp_arguments, Qmocklisp, Qmocklisp_arguments;
 extern Lisp_Object Vautoload_queue;
 extern Lisp_Object Vdebug_on_error;
+extern Lisp_Object Vsignaling_function;
+
 /* To run a normal hook, use the appropriate function from the list below.
    The calling convention: