1 files changed, 1 insertions, 0 deletions

diff --git a/src/lisp.h b/src/lisp.h
index b2ab5684d4d..f526cd36a6f 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3163,6 +3163,7 @@ extern Lisp_Object internal_with_output_to_temp_buffer
         (const char *, Lisp_Object (*) (Lisp_Object), Lisp_Object);
 enum FLOAT_TO_STRING_BUFSIZE { FLOAT_TO_STRING_BUFSIZE = 350 };
 extern int float_to_string (char *, double);
+extern void init_print_once (void);
 extern void syms_of_print (void);
 
 /* Defined in doprnt.c.  */