diff --git a/qtcreator.pro b/qtcreator.pro
index f663e494b06619594b417a48a9da1909a754a6e8..f2b368b8ce6ca01975659089095dcf31042f5c75 100644
--- a/qtcreator.pro
+++ b/qtcreator.pro
@@ -104,7 +104,7 @@ macx {
     copy_menu_nib_installer.commands = cp -R \"$$MENU_NIB\" \"$${INSTALLER_NAME}.app/Contents/Resources\"
 
     codesign_installer.commands = codesign -s \"$(SIGNING_IDENTITY)\" $(SIGNING_FLAGS) \"$${INSTALLER_NAME}.app\"
-    dmg_installer.commands = hdiutil create -srcfolder "$${INSTALLER_NAME}.app" -volname \"Qt Creator\" -format UDBZ "$${BASENAME}-installer.dmg" -ov -scrub -stretch 2g
+    dmg_installer.commands = hdiutil create -srcfolder "$${INSTALLER_NAME}.app" -volname \"Qt Creator\" -format UDBZ "$${BASENAME}-installer.dmg" -ov -scrub -size 1g -verbose
     QMAKE_EXTRA_TARGETS += codesign_installer dmg_installer copy_menu_nib_installer
 }
 
diff --git a/scripts/makedmg.sh b/scripts/makedmg.sh
index cc7a4d816e9fa954a215213f28045ea9aa323f3d..15c6492f47ae8b2fe378dcf93546b32c9ee20909 100755
--- a/scripts/makedmg.sh
+++ b/scripts/makedmg.sh
@@ -12,7 +12,7 @@ cp -a "${sourceFolder}/" "${intermediateFolder}"
 ln -s /Applications "${intermediateFolder}"
 cp "$(dirname "${BASH_SOURCE[0]}")/../LICENSE.LGPL" "${intermediateFolder}/LICENSE_LGPL.txt"
 echo Creating image...
-hdiutil create -srcfolder "${intermediateFolder}" -volname "${title}" -format UDBZ "${finalDMGName}" -ov -scrub -stretch 2g -verbose
+hdiutil create -srcfolder "${intermediateFolder}" -volname "${title}" -format UDBZ "${finalDMGName}" -ov -scrub -size 1g -verbose
 # make sure that the image is umounted etc
 sleep 4