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 304919831140..47d196cec26b 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
@@ -91,7 +91,7 @@ _qtSetQmakePath() {
 
 if [ -z "$NIX_QT5_TMP" ]; then
     if [ -z "$NIX_QT_SUBMODULE" ]; then
-        NIX_QT5_TMP=$(mktemp -d)
+        NIX_QT5_TMP=$(pwd)/__nix_qt5__
     else
         NIX_QT5_TMP=$out
     fi
diff --git a/pkgs/development/libraries/qt-5/5.6/qtbase/setup-hook.sh b/pkgs/development/libraries/qt-5/5.6/qtbase/setup-hook.sh
index 304919831140..47d196cec26b 100644
--- a/pkgs/development/libraries/qt-5/5.6/qtbase/setup-hook.sh
+++ b/pkgs/development/libraries/qt-5/5.6/qtbase/setup-hook.sh
@@ -91,7 +91,7 @@ _qtSetQmakePath() {
 
 if [ -z "$NIX_QT5_TMP" ]; then
     if [ -z "$NIX_QT_SUBMODULE" ]; then
-        NIX_QT5_TMP=$(mktemp -d)
+        NIX_QT5_TMP=$(pwd)/__nix_qt5__
     else
         NIX_QT5_TMP=$out
     fi
diff --git a/pkgs/development/libraries/qt-5/5.7/qtbase/setup-hook.sh b/pkgs/development/libraries/qt-5/5.7/qtbase/setup-hook.sh
index 304919831140..47d196cec26b 100644
--- a/pkgs/development/libraries/qt-5/5.7/qtbase/setup-hook.sh
+++ b/pkgs/development/libraries/qt-5/5.7/qtbase/setup-hook.sh
@@ -91,7 +91,7 @@ _qtSetQmakePath() {
 
 if [ -z "$NIX_QT5_TMP" ]; then
     if [ -z "$NIX_QT_SUBMODULE" ]; then
-        NIX_QT5_TMP=$(mktemp -d)
+        NIX_QT5_TMP=$(pwd)/__nix_qt5__
     else
         NIX_QT5_TMP=$out
     fi