diff --git a/pkgs/development/libraries/qt-5/5.5/qtbase/setup-hook.sh b/pkgs/development/libraries/qt-5/5.5/qtbase/setup-hook.sh
index 33380ce0d97..d5e9eff60ef 100644
--- a/pkgs/development/libraries/qt-5/5.5/qtbase/setup-hook.sh
+++ b/pkgs/development/libraries/qt-5/5.5/qtbase/setup-hook.sh
@@ -65,7 +65,7 @@ setQMakePath() {
 
 qtOut=""
 if [[ -z "$NIX_QT_SUBMODULE" ]]; then
-    qtOut="$PWD/qmake-$name"
+    qtOut=`mktemp -d`
 else
     qtOut=$out
 fi