diff --git a/pkgs/applications/editors/emacs-modes/jdee/default.nix b/pkgs/applications/editors/emacs-modes/jdee/default.nix
index c80adcbfe96..2d93e782048 100644
--- a/pkgs/applications/editors/emacs-modes/jdee/default.nix
+++ b/pkgs/applications/editors/emacs-modes/jdee/default.nix
@@ -9,12 +9,13 @@ in
     # Last release is too old, so use SVN.
     # See http://www.emacswiki.org/emacs/JavaDevelopmentEnvironment .
     src = fetchsvn {
-      # Looks like they're not sure whether to put one or two `e'...
-      url = "https://jdee.svn.sourceforge.net/svnroot/jdee/trunk/jde";
+      url = "https://jdee.svn.sourceforge.net/svnroot/jdee/trunk/jdee";
       rev = revision;
-      sha256 = "0pjkbr1srx2m428xkky1csf97fr5219prs4dif7njlydyrwp0gnn";
+      sha256 = "1qj5cv74dp6nf6060jyvnlcbmc4sz8a09806gwa1zfiwz6mm9zrs";
     };
 
+    patchFlags = "-p1 --ignore-whitespace";
+
     patches = [
       ./build-properties.patch
       ./cedet-paths.patch ./elib-avltree.patch
@@ -91,5 +92,6 @@ in
       license = "GPLv2+";
 
       maintainers = [ stdenv.lib.maintainers.ludo ];
+      platforms = stdenv.lib.platforms.gnu;  # arbitrary choice
     };
   }