diff --git a/xkb/xkbUtils.c b/xkb/xkbUtils.c
index 400306a22..062159ec6 100644
--- a/xkb/xkbUtils.c
+++ b/xkb/xkbUtils.c
@@ -1220,7 +1220,7 @@ XkbCopyKeymap(XkbDescPtr src, XkbDescPtr dst, Bool sendNotifies)
                     tmp = xalloc(src->max_key_code + 1);
                 if (!tmp)
                     return FALSE;
-                dst->map->syms = tmp;
+                dst->map->modmap = tmp;
             }
             memcpy(dst->map->modmap, src->map->modmap, src->max_key_code + 1);
         }