diff --git a/build-tools/xaprepare/xaprepare/Steps/Step_InstallAdoptOpenJDK.MacOS.cs b/build-tools/xaprepare/xaprepare/Steps/Step_InstallAdoptOpenJDK.MacOS.cs
index cbd0273a00e..8e7e38d1635 100644
--- a/build-tools/xaprepare/xaprepare/Steps/Step_InstallAdoptOpenJDK.MacOS.cs
+++ b/build-tools/xaprepare/xaprepare/Steps/Step_InstallAdoptOpenJDK.MacOS.cs
@@ -10,6 +10,12 @@ void MoveContents (string sourceDir, string destinationDir)
 		{
 			string realSourceDir = Path.Combine (sourceDir, "Contents", "Home");
 			Utilities.MoveDirectoryContentsRecursively (realSourceDir, destinationDir);
+
+			var xattr_d = new ProcessRunner ("xattr", "-d", "-r", "com.apple.quarantine", ".") {
+				EchoStandardError   = true,
+				WorkingDirectory    = destinationDir,
+			};
+			xattr_d.Run ();
 		}
 	}
 }