diff --git a/nixos/modules/services/misc/prowlarr.nix b/nixos/modules/services/misc/prowlarr.nix
index cd2c98fc5dfb..836280d3e5fe 100644
--- a/nixos/modules/services/misc/prowlarr.nix
+++ b/nixos/modules/services/misc/prowlarr.nix
@@ -31,7 +31,7 @@ in
         Type = "simple";
         DynamicUser = true;
         StateDirectory = "prowlarr";
-        ExecStart = "${cfg.package}/bin/Prowlarr -nobrowser -data=/var/lib/prowlarr";
+        ExecStart = "${lib.getExe cfg.package} -nobrowser -data=/var/lib/prowlarr";
         Restart = "on-failure";
       };
     };
diff --git a/pkgs/servers/prowlarr/default.nix b/pkgs/servers/prowlarr/default.nix
index fb227da87a19..5c2ccd491fc8 100644
--- a/pkgs/servers/prowlarr/default.nix
+++ b/pkgs/servers/prowlarr/default.nix
@@ -63,6 +63,7 @@ in stdenv.mkDerivation rec {
     changelog = "https://github.com/Prowlarr/Prowlarr/releases/tag/v${version}";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ jdreaver ];
+    mainProgram = "Prowlarr";
     platforms = [
       "aarch64-darwin"
       "aarch64-linux"