1 files changed, 1 insertions, 1 deletions

diff --git a/src/buffer.c b/src/buffer.c
index 7d42489dd30..39fabf581bb 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5283,7 +5283,7 @@ init_buffer (void)
   } while (0)
 
 static void
-defvar_per_buffer (struct Lisp_Buffer_Objfwd *bo_fwd, char *namestring,
+defvar_per_buffer (struct Lisp_Buffer_Objfwd *bo_fwd, const char *namestring,
                    Lisp_Object *address, Lisp_Object type, char *doc)
 {
   struct Lisp_Symbol *sym;