diff --git a/build.xml b/build.xml
index 8d6da077..d364b194 100644
--- a/build.xml
+++ b/build.xml
@@ -125,7 +125,7 @@
         <!-- Retina display support -->
         <replaceregexp file="dist/DavMail.app/Contents/Info.plist" match="&lt;key>CFBundleName&lt;/key>"
                        replace="&lt;key>NSHighResolutionCapable&lt;/key>&lt;true/>&lt;key>CFBundleName&lt;/key>"/>
-        <zip file="dist/DavMail-MacOSX-${release}.app.zip">
+        <zip file="dist/DavMail.app.zip">
             <zipfileset dir="dist">
                 <include name="DavMail.app/**/*"/>
                 <exclude name="DavMail.app/Contents/MacOS/davmail"/>
@@ -134,6 +134,14 @@
                 <include name="DavMail.app/Contents/MacOS/davmail"/>
             </zipfileset>
         </zip>
+        <zip file="dist/DavMail-MacOSX-${release-name}.app.zip">
+            <zipfileset dir="dist">
+                <include name="DavMail.app.zip"/>
+            </zipfileset>
+            <zipfileset dir="src/osx">
+                <include name="readme.txt"/>
+            </zipfileset>
+        </zip>
         <!--delete dir="dist/DavMail.app"/-->
     </target>
 
diff --git a/src/osx/readme.txt b/src/osx/readme.txt
new file mode 100644
index 00000000..cd8b049a
--- /dev/null
+++ b/src/osx/readme.txt
@@ -0,0 +1,9 @@
+In order to run DavMail on OSX Mountain Lion, you will need to disable Gatekeeper temporarily.
+
+Steps:
+- Open System Preferences/Security and Privacy and choose to allow applications download from anywhere.
+- Run fixQuarantineFlag.command (Double click in Finder)
+- Uncompress DavMail.app.zip (Double click in Finder)
+- Launch DavMail application once
+- Back to System Preferences/Security and Privacy, restore original setting
+- You may want to move DavMail to your Applications folder