diff --git a/pkgs/development/tools/hclfmt/default.nix b/pkgs/development/tools/hclfmt/default.nix
index ce2baa4fe3d5..c479ef547b60 100644
--- a/pkgs/development/tools/hclfmt/default.nix
+++ b/pkgs/development/tools/hclfmt/default.nix
@@ -21,6 +21,7 @@ buildGoModule rec {
     description = "a code formatter for the Hashicorp Configuration Language (HCL) format";
     homepage = "https://github.com/hashicorp/hcl/tree/main/cmd/hclfmt";
     license = licenses.mpl20;
+    mainProgram = "hclfmt";
     maintainers = with maintainers; [ zimbatm ];
   };
 }