diff --git a/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix b/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
index 7c1fa449ebb..b611282294c 100644
--- a/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
@@ -1,11 +1,11 @@
-{ qtModule, lib, python2, qtbase, qtsvg }:
+{ qtModule, lib, python3, qtbase, qtsvg }:
 
 with lib;
 
 qtModule {
   name = "qtdeclarative";
   qtInputs = [ qtbase qtsvg ];
-  nativeBuildInputs = [ python2 ];
+  nativeBuildInputs = [ python3 ];
   outputs = [ "out" "dev" "bin" ];
   preConfigure = ''
     NIX_CFLAGS_COMPILE+=" -DNIXPKGS_QML2_IMPORT_PREFIX=\"$qtQmlPrefix\""