diff --git a/src/bin/psql/command.c b/src/bin/psql/command.c
new file mode 100644
index 2728216..5eb1e88
*** a/src/bin/psql/command.c
--- b/src/bin/psql/command.c
*************** do_pset(const char *param, const char *v
*** 2484,2490 ****
  			popt->topt.format = PRINT_TROFF_MS;
  		else
  		{
! 			psql_error("\\pset: allowed formats are unaligned, aligned, wrapped, html, asciidoc, latex, troff-ms\n");
  			return false;
  		}
  
--- 2484,2490 ----
  			popt->topt.format = PRINT_TROFF_MS;
  		else
  		{
! 			psql_error("\\pset: allowed formats are unaligned, aligned, wrapped, html, asciidoc, latex, latex-longtable, troff-ms\n");
  			return false;
  		}