diff --git a/docs/runtime/env_vars.md b/docs/runtime/env_vars.md
index 92489492e..bdccce2d2 100644
--- a/docs/runtime/env_vars.md
+++ b/docs/runtime/env_vars.md
@@ -21,7 +21,7 @@ and distributed server system).
| CLOSE_SOCKET_IN_CHILD | undefined | If set to "true", the servers will close the listening socket in child processes. This should not be necessary, but was for Linux kernels 2.0.x, and possibly earlier kernels. It is not necessary on Solaris or Linux potato or kernels 2.4 and later. Only set this variable if your system is getting too many open files. You can check this with the 'lsof' command. | dsserver |
| MAX_FORECAST_LEAD_DAYS | 10 | When seraching a directory for data stored in forecast file name format (yyyymmdd/g_hhmmss/f_ssssssss.ext) the library needs to know how far back in time to look for forecast data which may be valid at the current time. It looks back a maximum of this number of days. | didss |
| MDV_WRITE_FORMAT | FORMAT_NCF | Format for writing MDV files. Options are: - FORMAT_NCF (NetCDF CF, the default)
- FORMAT_MDV (legacy 32-bit format)
- FORMAT_XML (XML header and data buffer)
| Mdvx |
-| MDV_WRITE_USING_EXTENDED_PATHS | FALSE | Tells MDV apps to add the date to the file name. Options are:
If TRUE, ```yyyymmdd/hhmmss.mdv``` becomes ```yyyymmdd/yyyymmdd_hhmmss.mdv``` | Mdvx |
+| MDV_WRITE_USING_EXTENDED_PATHS | FALSE | Tells MDV apps to add the date to the file name.
Options are:
If TRUE
``` yyyymmdd/hhmmss.mdv``` becomes
``` yyyymmdd/yyyymmdd_hhmmss.mdv``` | Mdvx |
| MDV_WRITE_ADD_YEAR_SUBDIR | FALSE | Tells MDV apps to prepend the date to the output path.
Options are:
If TRUE, ```yyyymmdd/hhmmss.mdv``` becomes ```yyyy/yyyymmdd/hhmmss.mdv``` | Mdvx |
| MDV_WRITE_ADD_YEAR_SUBDIR | FALSE | Tells MDV apps to prepend the date to the output path.
Options are:
If TRUE, ```yyyymmdd/hhmmss.mdv``` becomes ```yyyy/yyyymmdd/hhmmss.mdv``` | Mdvx |