diff --git a/pkgs/by-name/ms/mswatch/package.nix b/pkgs/by-name/ms/mswatch/package.nix
index 21d65737dd32..2c1d4b461ea4 100644
--- a/pkgs/by-name/ms/mswatch/package.nix
+++ b/pkgs/by-name/ms/mswatch/package.nix
@@ -12,7 +12,10 @@
 stdenv.mkDerivation (finalAttrs: {
   pname = "mswatch";
   # Stable release won't compile successfully
-  version = "unstable-2018-11-21";
+  version = "1.2.0-unstable-2018-11-21";
+
+  strictDeps = true;
+  __structuredAttrs = true;
 
   src = fetchsvn {
     url = "svn://svn.code.sf.net/p/mswatch/code/trunk";