diff --git a/macos/Sources/Features/Terminal/BaseTerminalController.swift b/macos/Sources/Features/Terminal/BaseTerminalController.swift
index 0c5b50b53..bace20f05 100644
--- a/macos/Sources/Features/Terminal/BaseTerminalController.swift
+++ b/macos/Sources/Features/Terminal/BaseTerminalController.swift
@@ -449,6 +449,7 @@ class BaseTerminalController: NSWindowController,
         alert.addButton(withTitle: "Cancel")
         alert.alertStyle = .warning
         alert.beginSheetModal(for: window, completionHandler: { response in
+            self.alert = nil
             switch (response) {
             case .alertFirstButtonReturn:
                 alert.window.orderOut(nil)