Index: combined/src/odbc/odbc-functions.lisp
===================================================================
--- combined/src/odbc/odbc-functions.lisp	(revision combined,2.1.13)
+++ combined/src/odbc/odbc-functions.lisp	(revision combined,2.1.14)
@@ -69,5 +69,6 @@
        (error-code (cffi:foreign-alloc 'sql-integer))
        (msg-length (cffi:foreign-alloc 'sql-small-int)))
-    (SQLError henv hdbc hstmt sql-state error-code
+    (SQLError (or henv (null-pointer)) (or hdbc (null-pointer))
+              (or hstmt (null-pointer)) sql-state error-code
               error-message $SQL_MAX_MESSAGE_LENGTH msg-length)
     (get-string sql-state 5)          ;(%cstring-to-keyword sql-state)