diff --git a/includes/exception_consts.hpp b/includes/exception_consts.hpp
index 3a03ce1..a8968ff 100644
--- a/includes/exception_consts.hpp
+++ b/includes/exception_consts.hpp
@@ -3,6 +3,6 @@
 
 static const int EXCEPT_CONNREFUSED = 10;
 static const int EXCEPT_TOOFEWARGS = 15;
-
+static const int EXCEPT_INVALIDARGS = 20;
 
 #endif