diff --git a/usr.sbin/rtadvd/rtadvd.conf.5 b/usr.sbin/rtadvd/rtadvd.conf.5
index dcc73cce95cf..b9082eb2c335 100644
--- a/usr.sbin/rtadvd/rtadvd.conf.5
+++ b/usr.sbin/rtadvd/rtadvd.conf.5
@@ -109,7 +109,7 @@ The default value is 64.
 (str or num) A 8-bit flags field in router advertisement message header.
 This field can be specified either as a case-sensitive string or as an
 integer.
-A sting consists of characters each of which corresponds to a
+A string consists of characters each of which corresponds to a
 particular flag bit(s).
 An integer should be the logical OR of all enabled bits.
 Bit 7