diff --git a/hudson_mac_build_release.sh b/hudson_mac_build_release.sh
index 1e2b7d9..c97baa9 100755
--- a/hudson_mac_build_release.sh
+++ b/hudson_mac_build_release.sh
@@ -33,7 +33,7 @@ popd
 ################################################################################
 echo "Starting on FlightGear"
 pushd fgBuild
-cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -G Xcode ../flightgear
+cmake -DFG_NIGHTLY=1 -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -G Xcode ../flightgear
 
 xcodebuild -configuration RelWithDebInfo -target install  build
 
diff --git a/hudson_mac_package_release.rb b/hudson_mac_package_release.rb
index 6f3efad..e4f0dc1 100755
--- a/hudson_mac_package_release.rb
+++ b/hudson_mac_package_release.rb
@@ -68,7 +68,7 @@ fgCurrentYear = t.year
 fgVersion = File.read("#{srcDir}/version").strip
 volName="\"FlightGear #{fgVersion}\""
 
-dmgPath = Dir.pwd + "/output/FlightGear-#{fgVersion}.dmg"
+dmgPath = Dir.pwd + "/output/FlightGear-#{fgVersion}-nightly.dmg"
 
 puts "Creating directory structure"
 `mkdir -p #{macosDir}`