1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/tools/ocaml/opaline/default.nix b/nixpkgs/pkgs/development/tools/ocaml/opaline/default.nix
index b6bc9c9b9f6f..e8fbae0f241b 100644
--- a/nixpkgs/pkgs/development/tools/ocaml/opaline/default.nix
+++ b/nixpkgs/pkgs/development/tools/ocaml/opaline/default.nix
@@ -20,6 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "OPAm Light INstaller Engine";
+    mainProgram = "opaline";
     license = lib.licenses.mit;
     maintainers = [ lib.maintainers.vbgl ];
     inherit (src.meta) homepage;