diff --git a/res/res_config_odbc.c b/res/res_config_odbc.c
index e748d7fbf8..4bfc1db44c 100644
--- a/res/res_config_odbc.c
+++ b/res/res_config_odbc.c
@@ -448,7 +448,7 @@ struct config_odbc_obj {
 	char filename[128];
 	char category[128];
 	char var_name[128];
-	char var_val[128];
+	char var_val[1024]; /* changed from 128 to 1024 via bug 8251 */
 	SQLINTEGER err;
 };