diff --git a/pkgs/applications/editors/rstudio/default.nix b/pkgs/applications/editors/rstudio/default.nix
index 9ac91e7086ab..efb0a6f624d8 100644
--- a/pkgs/applications/editors/rstudio/default.nix
+++ b/pkgs/applications/editors/rstudio/default.nix
@@ -11,7 +11,6 @@ stdenv.mkDerivation rec {
   name = "RStudio-${version}";
 
   buildInputs = [ cmake boost163 zlib openssl R qt5.full qt5.qtwebkit libuuid unzip ant jdk makeWrapper pandoc ];
-  nativeBuildInputs = [ qt5.qmake ];
 
   src = fetchurl {
     url = "https://github.com/rstudio/rstudio/archive/v${version}.tar.gz";
@@ -91,7 +90,7 @@ stdenv.mkDerivation rec {
       cp ${pandoc}/bin/pandoc dependencies/common/pandoc/
     '';
 
-  cmakeFlags = [ "-DRSTUDIO_TARGET=Desktop" "-DQT_QMAKE_EXECUTABLE=${qt5.qmake}/bin/qmake" ];
+  cmakeFlags = [ "-DRSTUDIO_TARGET=Desktop" "-DQT_QMAKE_EXECUTABLE=$NIX_QT5_TMP/bin/qmake" ];
 
   desktopItem = makeDesktopItem {
     name = name;