diff --git a/doc/nethack.6 b/doc/nethack.6
index a958d0231..cfbf3b3b5 100644
--- a/doc/nethack.6
+++ b/doc/nethack.6
@@ -144,7 +144,7 @@ character's gender.  Any of the parts of the suffix may be left out.
 .PP
 .B \-p
 .I profession
-can be used to determine the character profession, also know as the role.
+can be used to determine the character profession, also known as the role.
 You can specify either the male or female name for the character role, or
 the first three characters of the role as an abbreviation.
 .B "\-p \@"
diff --git a/doc/nethack.txt b/doc/nethack.txt
index 9faea94e6..e75cc93a6 100644
--- a/doc/nethack.txt
+++ b/doc/nethack.txt
@@ -77,7 +77,7 @@ DESCRIPTION
        left out.
 
        -p profession can be used to determine the character  profession,
-       also know as the role.  You can specify either the male or female
+       also known as the role. You can specify either the male or female
        name for the character role, or the first three characters of the
        role  as  an  abbreviation.  -p @ has been retained to explicitly
        request that a random role be chosen.  It may need to  be  quoted