1 files changed, 3 insertions, 2 deletions

diff --git a/custom/run-opossum_bragi.nix b/custom/run-opossum_bragi.nix
index bc8e4bb0..34452ef7 100644
--- a/custom/run-opossum_bragi.nix
+++ b/custom/run-opossum_bragi.nix
@@ -7,9 +7,10 @@
 , opossum
 }:
 
-stdenv.mkDerivation {
-  name = "run-opossum-${version}";
+let
   version = "0.0.0";
+in stdenv.mkDerivation {
+  name = "run-opossum-${version}";
   buildInputs = [ makeWrapper ];
         src = builtins.toFile name ''
     #!${zsh}/bin/zsh