diff --git a/doc/lammps.1 b/doc/lammps.1
index 5f1c25867e..586627258e 100644
--- a/doc/lammps.1
+++ b/doc/lammps.1
@@ -161,7 +161,7 @@ list references for specific cite-able features used during a
 run.
 .TP
 \fB\-pk <style> [options]\fR or \fB\-package <style> [options]\fR
-Invoke the \fBpackage\R command with <style> and optional arguments.
+Invoke the \fBpackage\fR command with <style> and optional arguments.
 The syntax is the same as if the command appeared in an input script.
 For example "-pk gpu 2" is the same as "package gpu 2" in the input
 script. The possible styles and options are discussed in the