X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fcompiler-deftype.lisp;h=c4a92a5c8c2111978cd00f2293209579a1ba366f;hb=5d04a95274c9ddaebbcd6ddffc5d646e2c25598c;hp=322b06be4619ceb26118c5af08b4386574ffd246;hpb=ff92598854bf7cae8d57fe49cef4d9a98e1ab345;p=sbcl.git

diff --git a/src/compiler/compiler-deftype.lisp b/src/compiler/compiler-deftype.lisp
index 322b06b..c4a92a5 100644
--- a/src/compiler/compiler-deftype.lisp
+++ b/src/compiler/compiler-deftype.lisp
@@ -23,7 +23,7 @@
     (:instance
      (warn "The class ~S is being redefined to be a DEFTYPE." name)
      (undefine-structure (layout-info (classoid-layout (find-classoid name))))
-     (setf (classoid-cell-classoid (find-classoid-cell name)) nil)
+     (setf (classoid-cell-classoid (find-classoid-cell name :create t)) nil)
      (setf (info :type :compiler-layout name) nil)
      (setf (info :type :kind name) :defined))
     (:defined