1 files changed, 4 insertions, 4 deletions

diff --git a/src/data.c b/src/data.c
index 936bb74f69a..11cd598ed85 100644
--- a/src/data.c
+++ b/src/data.c
@@ -62,25 +62,25 @@ OBJFWDP (lispfwd a)
   return XFWDTYPE (a) == Lisp_Fwd_Obj;
 }
 
-static struct Lisp_Boolfwd *
+static struct Lisp_Boolfwd const *
 XBOOLFWD (lispfwd a)
 {
   eassert (BOOLFWDP (a));
   return a.fwdptr;
 }
-static struct Lisp_Kboard_Objfwd *
+static struct Lisp_Kboard_Objfwd const *
 XKBOARD_OBJFWD (lispfwd a)
 {
   eassert (KBOARD_OBJFWDP (a));
   return a.fwdptr;
 }
-static struct Lisp_Intfwd *
+static struct Lisp_Intfwd const *
 XFIXNUMFWD (lispfwd a)
 {
   eassert (INTFWDP (a));
   return a.fwdptr;
 }
-static struct Lisp_Objfwd *
+static struct Lisp_Objfwd const *
 XOBJFWD (lispfwd a)
 {
   eassert (OBJFWDP (a));