diff --git a/pkgs/development/lisp-modules/asdf/default.nix b/pkgs/development/lisp-modules/asdf/default.nix
index ef07a65f96bc..be8b5c7b7a93 100644
--- a/pkgs/development/lisp-modules/asdf/default.nix
+++ b/pkgs/development/lisp-modules/asdf/default.nix
@@ -3,11 +3,11 @@ let
   s = # Generated upstream information
   rec {
     baseName="asdf";
-    version="3.2.0";
+    version="3.3.0";
     name="${baseName}-${version}";
-    hash="0ns4hh5f0anfgvy4q68wsylgwfin82kb1k2p53h29cf8jiil0p9a";
-    url="http://common-lisp.net/project/asdf/archives/asdf-3.2.0.tar.gz";
-    sha256="0ns4hh5f0anfgvy4q68wsylgwfin82kb1k2p53h29cf8jiil0p9a";
+    hash="16qphj2ilds4plzr36jbnrxxl5s21q53m9vasv3208gb5wjwcnv8";
+    url="http://common-lisp.net/project/asdf/archives/asdf-3.3.0.tar.gz";
+    sha256="16qphj2ilds4plzr36jbnrxxl5s21q53m9vasv3208gb5wjwcnv8";
   };
   buildInputs = [
     texinfo texLive perl
diff --git a/pkgs/development/lisp-modules/quicklisp-to-nix/system-info.lisp b/pkgs/development/lisp-modules/quicklisp-to-nix/system-info.lisp
index 3a87626df1bf..9dd82ce2b2d6 100644
--- a/pkgs/development/lisp-modules/quicklisp-to-nix/system-info.lisp
+++ b/pkgs/development/lisp-modules/quicklisp-to-nix/system-info.lisp
@@ -264,7 +264,7 @@ parasitic systems will be tracked."
          (source-file (asdf:system-source-file asdf-system)))
     (cond
       (source-file
-       (loop :for system-name :being :the :hash-keys :of asdf/find-system:*defined-systems* :do
+       (loop :for system-name :being :the :hash-keys :of asdf/find-system::*registered-systems* :do
           (when (and (parasitic-relationship-p system system-name)
                      (not (blacklisted-parasite-p system-name)))
             (found-new-parasite system-name)