diff --git a/pkgs/by-name/fi/firejail/package.nix b/pkgs/by-name/fi/firejail/package.nix
index 4fdde82d3778..1975d2a676e0 100644
--- a/pkgs/by-name/fi/firejail/package.nix
+++ b/pkgs/by-name/fi/firejail/package.nix
@@ -99,5 +99,6 @@ stdenv.mkDerivation rec {
     maintainers = [ lib.maintainers.raskin ];
     platforms = lib.platforms.linux;
     homepage = "https://firejail.wordpress.com/";
+    mainProgram = "firejail";
   };
 }