diff --git a/pkgs/development/lisp-modules/quicklisp-to-nix-overrides.nix b/pkgs/development/lisp-modules/quicklisp-to-nix-overrides.nix
index aae3db21143f..4c983d5da332 100644
--- a/pkgs/development/lisp-modules/quicklisp-to-nix-overrides.nix
+++ b/pkgs/development/lisp-modules/quicklisp-to-nix-overrides.nix
@@ -32,9 +32,9 @@ in
       '';
       preInstall = ''
         type gcc
-        mkdir -p "$out/lib/common-lisp/" 
+        mkdir -p "$out/lib/common-lisp/"
         cp -r . "$out/lib/common-lisp/cl-fuse/"
-        "gcc" "-x" "c" "$out/lib/common-lisp/cl-fuse/fuse-launcher.c-minus" "-fPIC" "--shared" "-lfuse" "-o" "$out/lib/common-lisp/cl-fuse/libfuse-launcher.so"        
+        "gcc" "-x" "c" "$out/lib/common-lisp/cl-fuse/fuse-launcher.c-minus" "-fPIC" "--shared" "-lfuse" "-o" "$out/lib/common-lisp/cl-fuse/libfuse-launcher.so"
       '';
     };
   };
@@ -134,15 +134,15 @@ $out/lib/common-lisp/query-fs"
         @@ -155,7 +155,7 @@
                           ,(unique-dir-name)))
             (user-homedir-pathname)))
-         
+
         -(defvar *fasl-directory* (default-fasl-dir)
         +(defvar *fasl-directory* #P"$out/lib/common-lisp/swank/fasl/"
            "The directory where fasl files should be placed.")
-         
+
          (defun binary-pathname (src-pathname binary-dir)
         @@ -277,12 +277,7 @@
                           (contrib-dir src-dir))))
-         
+
          (defun delete-stale-contrib-fasl-files (swank-files contrib-files fasl-dir)
         -  (let ((newest (reduce #'max (mapcar #'file-write-date swank-files))))
         -    (dolist (src contrib-files)
@@ -151,7 +151,7 @@ $out/lib/common-lisp/query-fs"
         -                   (<= (file-write-date fasl) newest))
         -          (delete-file fasl))))))
         +  (declare (ignore swank-files contrib-files fasl-dir)))
-         
+
          (defun compile-contribs (&key (src-dir (contrib-dir *source-directory*))
                                     (fasl-dir (contrib-dir *fasl-directory*))
         EOD
@@ -215,4 +215,16 @@ $out/lib/common-lisp/query-fs"
       '';
     };
   };
+  dbi = x: {
+    parasites = [];
+    deps = pkgs.lib.filter
+      (x:
+        (
+          x.name != quicklisp-to-nix-packages.dbd-mysql.name &&
+          x.name != quicklisp-to-nix-packages.dbd-postgres.name &&
+          x.name != quicklisp-to-nix-packages.dbd-sqlite3.name &&
+          x.name != quicklisp-to-nix-packages.dbi-test.name &&
+          true))
+      x.deps;
+  };
 }