diff --git a/pkgs/applications/audio/synthv1/default.nix b/pkgs/applications/audio/synthv1/default.nix
index 96aa7737b818..349c7acc3db3 100644
--- a/pkgs/applications/audio/synthv1/default.nix
+++ b/pkgs/applications/audio/synthv1/default.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, pkgconfig, qt5, libjack2, alsaLib, liblo, lv2 }:
+{ mkDerivation, stdenv, fetchurl, pkgconfig, qtbase, qttools, libjack2, alsaLib, liblo, lv2 }:
 
-stdenv.mkDerivation rec {
+mkDerivation rec {
   pname = "synthv1";
   version = "0.9.11";
 
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
     sha256 = "116k2vca9dygvsd684wvxm61p0l1xrrgdph4qrrprlsr6vj0llgm";
   };
 
-  buildInputs = [ qt5.qtbase qt5.qttools libjack2 alsaLib liblo lv2 ];
+  buildInputs = [ qtbase qttools libjack2 alsaLib liblo lv2 ];
 
   nativeBuildInputs = [ pkgconfig ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3c4af7fab598..1c88c07684f9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -22839,7 +22839,7 @@ in
 
   superTuxKart = callPackage ../games/super-tux-kart { };
 
-  synthv1 = callPackage ../applications/audio/synthv1 { };
+  synthv1 = libsForQt5.callPackage ../applications/audio/synthv1 { };
 
   system-syzygy = callPackage ../games/system-syzygy { };