1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/elm/packages/elm-instrument.nix b/nixpkgs/pkgs/development/compilers/elm/packages/elm-instrument.nix
index 18f4d3aff196..02593b855077 100644
--- a/nixpkgs/pkgs/development/compilers/elm/packages/elm-instrument.nix
+++ b/nixpkgs/pkgs/development/compilers/elm/packages/elm-instrument.nix
@@ -40,4 +40,5 @@ mkDerivation {
   homepage = "https://elm-lang.org";
   description = "Instrumentation library for Elm";
   license = lib.licenses.bsd3;
+  mainProgram = "elm-instrument";
 }