diff --git a/pkgs/applications/editors/emacs-modes/jdee/default.nix b/pkgs/applications/editors/emacs-modes/jdee/default.nix
index 78c17d30843f..8983b6d210e2 100644
--- a/pkgs/applications/editors/emacs-modes/jdee/default.nix
+++ b/pkgs/applications/editors/emacs-modes/jdee/default.nix
@@ -17,7 +17,7 @@ in
 
     patches = [
       ./installation-layout.patch ./cedet-paths.patch ./elib-avltree.patch
-      ./java-directory.patch
+      ./java-directory.patch ./jde-directory-files-recurs.patch
     ];
 
     configurePhase = ''
diff --git a/pkgs/applications/editors/emacs-modes/jdee/jde-directory-files-recurs.patch b/pkgs/applications/editors/emacs-modes/jdee/jde-directory-files-recurs.patch
new file mode 100644
index 000000000000..06a2ce4ea9d2
--- /dev/null
+++ b/pkgs/applications/editors/emacs-modes/jdee/jde-directory-files-recurs.patch
@@ -0,0 +1,25 @@
+This patch fixes a possible infinite recursion in `jde-directory-files-recurs'.
+It could occur, e.g., when DIR contains multiple slashes: we end up recursing
+on "DIR/." forever.
+
+--- jde/lisp/jde.el	(revision 90)
++++ jde/lisp/jde.el	(working copy)
+@@ -1500,14 +1500,14 @@ SYMBOL is unnecessary."
+   "Get all the files in DIR, and any subdirectories of DIR, whose
+ names match INCLUDE-REGEXP."
+   (let (files)
+-    (loop for file in (directory-files dir t) do
+-          (if (not (or (string= (concat dir "/.") file)
+-                       (string= (concat dir "/..") file)))
++    (loop for file in (directory-files dir) do
++          (if (not (member file '("." "..")))
++	      (let ((file (concat dir "/" file)))
+               (if (file-directory-p file)
+                   (setq files (append files (jde-directory-files-recurs file include-regexp)))
+                 (if (or (not include-regexp)
+                         (string-match include-regexp file))
+-                    (setq files (append files (list file)))))))
++		      (setq files (append files (list file))))))))
+     files))
+ 
+ (defun jde-expand-directory (dir include-regexp exclude-regexps symbol)