diff --git a/docs/nmap.1 b/docs/nmap.1
index c0da963b0..8f726bac1 100644
--- a/docs/nmap.1
+++ b/docs/nmap.1
@@ -1562,7 +1562,7 @@ Using this option can reduce accuracy, as some ports will appear non\-responsive
\FCfiltered\F[]
rather than the
\FCclosed\F[]
-state we see when RST packets are received\&. This optional is useful when you only care about open ports, and distinguishing between
+state we see when RST packets are received\&. This option is useful when you only care about open ports, and distinguishing between
\FCclosed\F[]
and
\FCfiltered\F[]
diff --git a/docs/refguide.xml b/docs/refguide.xml
index 48355dbac..15aa66d24 100644
--- a/docs/refguide.xml
+++ b/docs/refguide.xml
@@ -2605,7 +2605,7 @@ non-responsive because Nmap didn't wait long enough for a rate-limited
RST response. With a SYN
scan, the non-response results in the port being labeled
filtered rather than the closed
-state we see when RST packets are received. This optional is useful
+state we see when RST packets are received. This option is useful
when you only care about open ports, and distinguishing between
closed and filtered ports isn't
worth the extra time.