diff --git a/Mist/Commands/Download/DownloadInstallerCommand.swift b/Mist/Commands/Download/DownloadInstallerCommand.swift
index 4dcedec..4e3f455 100644
--- a/Mist/Commands/Download/DownloadInstallerCommand.swift
+++ b/Mist/Commands/Download/DownloadInstallerCommand.swift
@@ -48,6 +48,16 @@ struct DownloadInstallerCommand: ParsableCommand {
         }
 
         !options.quiet ? PrettyPrint.print("Found [\(product.identifier)] \(product.name) \(product.version) (\(product.build)) [\(product.date)]", noAnsi: options.noAnsi) : Mist.noop()
+
+        if let architecture: String = Hardware.architecture {
+
+            guard !(!product.bigSurOrNewer && options.outputType.contains(.iso) && architecture.contains("arm")) else {
+                !options.quiet ? PrettyPrint.print("macOS Catalina 10.15 and older cannot generate Bootable Disk Images on Apple Silicon Macs...", noAnsi: options.noAnsi) : Mist.noop()
+                !options.quiet ? PrettyPrint.print("Replace 'iso' with another output type or select a newer version of macOS, exiting...", noAnsi: options.noAnsi, prefix: .ending) : Mist.noop()
+                return
+            }
+        }
+
         try verifyExistingFiles(product, options: options)
         try setup(product, options: options)
         try verifyFreeSpace(product, options: options)