diff --git a/pkgs/applications/misc/edgetx/default.nix b/pkgs/applications/misc/edgetx/default.nix
index 186ad4be05c1..36626903b4c8 100644
--- a/pkgs/applications/misc/edgetx/default.nix
+++ b/pkgs/applications/misc/edgetx/default.nix
@@ -39,6 +39,7 @@ mkDerivation rec {
       firmware to the radio, backing up model settings, editing settings and
       running radio simulators.
     '';
+    mainProgram = "companion" + lib.concatStrings (lib.take 2 (lib.splitVersion version));
     homepage = "https://edgetx.org/";
     license = licenses.gpl2Only;
     platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" ];
diff --git a/pkgs/applications/misc/opentx/default.nix b/pkgs/applications/misc/opentx/default.nix
index 0634c03e7bd7..52d53c44cf3a 100644
--- a/pkgs/applications/misc/opentx/default.nix
+++ b/pkgs/applications/misc/opentx/default.nix
@@ -42,6 +42,7 @@ mkDerivation rec {
       firmware to the radio, backing up model settings, editing settings and
       running radio simulators.
     '';
+    mainProgram = "companion" + lib.concatStrings (lib.take 2 (lib.splitVersion version));
     homepage = "https://www.open-tx.org/";
     license = licenses.gpl2Only;
     platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" ];