1 files changed, 8 insertions, 4 deletions
diff --git a/pkgs/build-support/fetchsvnssh/default.nix b/pkgs/build-support/fetchsvnssh/default.nix
index 6c6c03d6873..a6f3d3469f0 100644
--- a/pkgs/build-support/fetchsvnssh/default.nix
+++ b/pkgs/build-support/fetchsvnssh/default.nix
@@ -1,16 +1,20 @@
 {stdenv, subversion, sshSupport ? false, openssh ? null, expect}: 
 {username, password, url, rev ? "HEAD", md5 ? "", sha256 ? ""}:
 
+
+if md5 != "" then
+  throw "fetchsvnssh does not support md5 anymore, please use sha256"
+else
 stdenv.mkDerivation {
   name = "svn-export-ssh";
   builder = ./builder.sh;
   buildInputs = [subversion expect];
 
-  outputHashAlgo = if sha256 == "" then "md5" else "sha256";
+  outputHashAlgo = "sha256";
   outputHashMode = "recursive";
-  outputHash = if sha256 == "" then md5 else sha256;
-  
+  outputHash = sha256;
+
   sshSubversion = ./sshsubversion.exp;
-  
+
   inherit username password url rev sshSupport openssh;
 }