diff --git a/pkgs/applications/networking/p2p/transmission/4.nix b/pkgs/applications/networking/p2p/transmission/4.nix
index 05d757d53a2c..9a185fa94dae 100644
--- a/pkgs/applications/networking/p2p/transmission/4.nix
+++ b/pkgs/applications/networking/p2p/transmission/4.nix
@@ -143,6 +143,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A fast, easy and free BitTorrent client";
+    mainProgram = if enableQt then "transmission-qt" else if enableGTK3 then "transmission-gtk" else "transmission-cli";
     longDescription = ''
       Transmission is a BitTorrent client which features a simple interface
       on top of a cross-platform back-end.
diff --git a/pkgs/applications/networking/p2p/transmission/default.nix b/pkgs/applications/networking/p2p/transmission/default.nix
index cc82c5038083..1cfa057a73ee 100644
--- a/pkgs/applications/networking/p2p/transmission/default.nix
+++ b/pkgs/applications/networking/p2p/transmission/default.nix
@@ -129,6 +129,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "A fast, easy and free BitTorrent client";
+    mainProgram = if enableQt then "transmission-qt" else if enableGTK3 then "transmission-gtk" else "transmission-cli";
     longDescription = ''
       Transmission is a BitTorrent client which features a simple interface
       on top of a cross-platform back-end.