diff --git a/tools/osx/macosx_bundle.sh b/tools/osx/macosx_bundle.sh
index 02a85564e..44f351080 100644
--- a/tools/osx/macosx_bundle.sh
+++ b/tools/osx/macosx_bundle.sh
@@ -274,7 +274,7 @@ function CreateDmg {
     local srcDir="$(mktemp -dt $$)"
 
     msg "Preparing disk image sources at ${srcDir}:"
-    ditto "${APP}" "${srcDir}"
+    cp -R "${APP}" "${srcDir}"
     ditto AboutThisBuild.txt "${srcDir}"
     ln -s /Applications "${srcDir}"