diff --git a/app/punishermodule.cpp b/app/punishermodule.cpp
index f991164..a6308aa 100644
--- a/app/punishermodule.cpp
+++ b/app/punishermodule.cpp
@@ -56,6 +56,11 @@ bool PunisherModule::messageHandler(Message msg)
         answer = QString("");
         for(; i<str.size(); ++i)
         {
+            if(str[i].size() < 3)
+            {
+                answer = QString("KICK #%1 %2 : <3 \r\n").arg(getChan()).arg(msg.nick);
+                return true;
+            }
             forbidden_words.push_back(str[i]);
             answer += privateSay(QString("added %1 to the list of forbidden words").arg(str[i]), target);
         }