1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/science/misc/reason-shell/default.nix b/nixpkgs/pkgs/applications/science/misc/reason-shell/default.nix
index aa1544669ed8..848f31abe4c6 100644
--- a/nixpkgs/pkgs/applications/science/misc/reason-shell/default.nix
+++ b/nixpkgs/pkgs/applications/science/misc/reason-shell/default.nix
@@ -32,6 +32,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with lib; {
     description = "A shell for research papers";
+    mainProgram = "reason";
     homepage = "https://github.com/jaywonchung/reason";
     changelog = "https://github.com/jaywonchung/reason/releases/tag/${src.rev}";
     license = licenses.mit;