diff --git a/NEWS b/NEWS
index e1a0b11487..c39c6e87de 100644
--- a/NEWS
+++ b/NEWS
@@ -60,6 +60,7 @@ PHP                                                                        NEWS
 - Fixed bug #29983 (PHP does not explicitly set mime type & charset). (Ilia)
 - Fixed bug #33153 (crash in mssql_next result). (Frank)
 - Fixed bug #32009 (crash when mssql_bind() is called more than once). (Frank)
+- Fixed bug #33963 (mssql_bind() fails on input parameters). (Frank)
 
 05 Sep 2005, PHP 5.0.5
 - Upgraded PCRE library to version 5.0. (Andrei)
diff --git a/ext/mssql/php_mssql.c b/ext/mssql/php_mssql.c
index 853a7868dd..f20cce5709 100644
--- a/ext/mssql/php_mssql.c
+++ b/ext/mssql/php_mssql.c
@@ -2010,7 +2010,9 @@ PHP_FUNCTION(mssql_bind)
 				type=Z_LVAL_PP(yytype);
 				is_output=Z_LVAL_PP(yyis_output);
 				is_null=Z_LVAL_PP(yyis_null);
-				maxlen=Z_LVAL_PP(yymaxlen);				
+				if (is_output) {
+					maxlen=Z_LVAL_PP(yymaxlen);
+				}
 			}
 			break;