diff --git a/wind/main.cpp b/wind/main.cpp
index 1ec70451..3986a90e 100644
--- a/wind/main.cpp
+++ b/wind/main.cpp
@@ -74,6 +74,12 @@ Result<int> luna_main(int argc, char** argv)
         return 1;
     }
 
+    if (!isatty(STDIN_FILENO))
+    {
+        os::eprintln("error: wind must be run from a TTY!");
+        return 1;
+    }
+
     auto mouse = TRY(os::File::open("/dev/mouse", os::File::ReadOnly));
     mouse->set_buffer(os::File::NotBuffered);
     mouse->set_close_on_exec();