1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/tools/galen/default.nix b/nixpkgs/pkgs/development/tools/galen/default.nix
index d1e02f411cd3..581a6f99374e 100644
--- a/nixpkgs/pkgs/development/tools/galen/default.nix
+++ b/nixpkgs/pkgs/development/tools/galen/default.nix
@@ -26,6 +26,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "http://galenframework.com";
     description = "Automated layout testing for websites";
+    mainProgram = "galen";
     sourceProvenance = with sourceTypes; [ binaryBytecode ];
     license = licenses.asl20;
     maintainers = [ ];