diff --git a/package/mac/build-mac-nightly-dmg.rb b/package/mac/build-mac-nightly-dmg.rb
index 43667a44c..2930ab305 100755
--- a/package/mac/build-mac-nightly-dmg.rb
+++ b/package/mac/build-mac-nightly-dmg.rb
@@ -40,7 +40,7 @@ end
 prefixDir=Dir.pwd + "/dist"
 dmgDir=Dir.pwd + "/image"
 srcDir=Dir.pwd + "/flightgear"
-dmgPath = Dir.pwd + "/fg_mac_nightly.dmg"
+
 
 puts "Erasing previous image dir"
 `rm -rf #{dmgDir}`
@@ -55,6 +55,8 @@ volName="\"FlightGear Nightly Build\""
 
 VERSION = File.read("#{srcDir}/version").strip
 
+dmgPath = Dir.pwd + "/fg_mac_nightly_#{VERSION}.dmg"
+
 puts "Creating directory structure"
 `mkdir -p #{macosDir}`
 `mkdir -p #{frameworksDir}`