1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/waterfurnace/default.nix b/nixpkgs/pkgs/development/python-modules/waterfurnace/default.nix
index eabd7de20ad0..6b7dce28924f 100644
--- a/nixpkgs/pkgs/development/python-modules/waterfurnace/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/waterfurnace/default.nix
@@ -45,6 +45,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Python interface to waterfurnace geothermal systems";
+    mainProgram = "waterfurnace-debug";
     homepage = "https://github.com/sdague/waterfurnace";
     changelog = "https://github.com/sdague/waterfurnace/blob/v${version}/HISTORY.rst";
     license = with licenses; [ asl20 ];