diff --git a/pkgs/tools/misc/colorpicker/default.nix b/pkgs/tools/misc/colorpicker/default.nix
index d2d0915a46fe..07d15469383d 100644
--- a/pkgs/tools/misc/colorpicker/default.nix
+++ b/pkgs/tools/misc/colorpicker/default.nix
@@ -23,5 +23,6 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/Ancurio/colorpicker";
     maintainers = with maintainers; [ jb55 ];
     license = licenses.mit;
+    mainProgram = "colorpicker";
   };
 }