1 files changed, 1 insertions, 0 deletions

diff --git a/src/lisp.h b/src/lisp.h
index 2f9a30fdfe9..df8f3120a8e 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -800,6 +800,7 @@ extern _Noreturn Lisp_Object wrong_type_argument (Lisp_Object, Lisp_Object);
 
 /* Defined in emacs.c.  */
 extern bool initialized;
+extern bool might_dump;
 
 /* Defined in eval.c.  */
 extern Lisp_Object Qautoload;