diff --git a/man/man1/openmc.1 b/man/man1/openmc.1
index fb7adb518e..b8a9d9c44c 100644
--- a/man/man1/openmc.1
+++ b/man/man1/openmc.1
@@ -19,6 +19,10 @@ Run in plotting mode
 .BI \-r " statepoint" "\fR,\fP \-\-restart" " statepoint"
 Restart a previous run using data stored in \fIstatepoint\fP.
 .TP
+.BI \-s " particleFile" "\fR,\fP \-\-particle" " particleFile"
+Run a single particle history from a particle restart file named
+\fIparticleFile\fP.
+.TP
 .B "\-v\fR, \fP\-\-version"
 Show version information.
 .TP