diff --git a/Usage.md b/Usage.md
index a48f154..c99f26c 100644
--- a/Usage.md
+++ b/Usage.md
@@ -84,7 +84,7 @@ Use plugin `nbak` to backup configuration.
 | `NNN_OPTS="cEnrx"` | binary options to `nnn` |
 | `NNN_OPENER="/path/to/custom/opener"` | custom opener (see plugin `nuke`) |
 | `NNN_BMS="d:$HOME/Documents;D:$HOME/Docs archive/"` <sup>1</sup> | key-bookmark pairs |
-| `NNN_PLUG='o:fzopen;m:nmount;x:_chmod +x $nnn'` <sup>1</sup> | key-plugin (or cmd) pairs |
+| `NNN_PLUG='o:fzopen;m:nmount;x:!chmod +x $nnn'` <sup>1</sup> | key-plugin (or cmd) pairs |
 | `NNN_ARCHIVE="\\.(7z\|bz2\|gz\|tar\|tgz\|zip)$"` <sup>2</sup> | archives [default: bzip2, (g)zip, tar]
 | `NNN_COLORS='1234'` (/`'#0a1b2c3d'`/`'#0a1b2c3d;1234'`) <sup>3</sup> <sup>5</sup>| context colors [default: '4444' (blue)] |
 | `NNN_FCOLORS='c1e2272e006033f7c6d6abc4'` <sup>4</sup> | file-specific colors |