diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
index aec46a8c0f6b..1d75bd542d6c 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
@@ -179,6 +179,7 @@ stdenv.mkDerivation rec {
     changelog = "https://github.com/signalapp/Signal-Desktop/releases/tag/v${version}";
     license = lib.licenses.agpl3Only;
     maintainers = with lib.maintainers; [ mic92 equirosa urandom ];
+    mainProgram = pname;
     platforms = [ "x86_64-linux" ];
     sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
   };