1 files changed, 4 insertions, 6 deletions

diff --git a/src/data.c b/src/data.c
index 50dc188684f..6622088b648 100644
--- a/src/data.c
+++ b/src/data.c
@@ -914,13 +914,11 @@ store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newva
     case Lisp_Fwd_Buffer_Obj:
       {
         int offset = XBUFFER_OBJFWD (valcontents)->offset;
-        Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype;
+        Lisp_Object predicate = XBUFFER_OBJFWD (valcontents)->predicate;
 
-        if (!(NILP (type) || NILP (newval)
-              || (XINT (type) == Lisp_Int0
-                  ? INTEGERP (newval)
-                  : XTYPE (newval) == XINT (type))))
-          buffer_slot_type_mismatch (newval, XINT (type));
+        if (!NILP (predicate) && !NILP (newval)
+            && NILP (call1 (predicate, newval)))
+          wrong_type_argument (predicate, newval);
 
         if (buf == NULL)
           buf = current_buffer;