list checking fix

1 files changed, 2 insertions, 1 deletions

diff --git a/consts.cpp b/consts.cpp
index eb17eaa..ffa0b30 100644
--- a/consts.cpp
+++ b/consts.cpp
@@ -14,5 +14,6 @@ const char *ERR_MSG[] = {
     "Illegal character in escape sequence: #\\%s",
     "Unknown character name: %s",
     "Improper pair structure",
-    "Improper vector structure"
+    "Improper vector structure",
+    "Bad formal %s in expression"
 };