diff --git a/main.py b/main.py
index d095999dd..314a43427 100644
--- a/main.py
+++ b/main.py
@@ -18,6 +18,12 @@ import sys
 #         Made by Twentysix, improved by many
 #
 
+if discord.version_info.major < 1:
+    print("You are not running the rewritten version of discord.py.\n\n"
+          "In order to use Red v3 you MUST be running d.py version"
+          " >= 1.0.0.")
+    sys.exit(1)
+
 
 def init_loggers(cli_flags):
     dpy_logger = logging.getLogger("discord")