diff --git a/sweebot.py b/sweebot.py
index 07c4c87..a8e8a84 100644
--- a/sweebot.py
+++ b/sweebot.py
@@ -498,9 +498,13 @@ while True:
                                         if i[0] == "+":
                                             if "-" + i[1:] in flag:
                                                 flag[flag.index("-" + i[1:])] = i
+                                            else:
+                                                flag.append(i)
                                         elif i[0] == "-":
                                             if "+" + i[1:] in flag:
                                                 flag[flag.index("+" + i[1:])] = i
+                                            else:
+                                                flag.append(i)
                                         else:
                                             multiline(nick + ": flag name should begin with + or -")
                                             break