diff --git a/pages/common/pnmtoxwd.md b/pages/common/pnmtoxwd.md
index b835ce8442..72825d94f9 100644
--- a/pages/common/pnmtoxwd.md
+++ b/pages/common/pnmtoxwd.md
@@ -13,4 +13,4 @@
 
 - Set the color depth of the output to b bits:
 
-`pnmtoxwd {{[-p|-pseudodepth]}} {{b}} {{path/to/input_file.pnm}} > {{path/to/output_file.xwd}}`
+`pnmtoxwd {{[-ps|-pseudodepth]}} {{b}} {{path/to/input_file.pnm}} > {{path/to/output_file.xwd}}`