1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/mergedb/default.nix b/nixpkgs/pkgs/development/python-modules/mergedb/default.nix
index 3c78026632ba..e5973aa280d2 100644
--- a/nixpkgs/pkgs/development/python-modules/mergedb/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/mergedb/default.nix
@@ -43,6 +43,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A tool/library for deep merging YAML files";
+    mainProgram = "mergedb";
     homepage = "https://github.com/graysonhead/mergedb";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ graysonhead ];