1 files changed, 1 insertions, 1 deletions

diff --git a/src/doc.c b/src/doc.c
index 303aed0486d..536d22c57a6 100644
--- a/src/doc.c
+++ b/src/doc.c
@@ -538,7 +538,7 @@ store_function_docstring (fun, offset)
         {
           tem = Fcdr (Fcdr (fun));
           if (CONSP (tem) && INTEGERP (XCAR (tem)))
-            XSETCARFASTINT (tem, offset);
+            XSETCAR (tem, make_number (offset));
         }
       else if (EQ (tem, Qmacro))
         store_function_docstring (XCDR (fun), offset);