diff --git a/man7/ipv6.7 b/man7/ipv6.7
index bab7056e5..0050ecd3f 100644
--- a/man7/ipv6.7
+++ b/man7/ipv6.7
@@ -149,11 +149,11 @@ structure.
 .B IPV6_MTU
 Set the MTU to be used for the socket.
 The MTU is limited by the device
-MTU or the path mtu when path mtu discovery is enabled.
+MTU or the path MTU when path MTU discovery is enabled.
 Argument is a pointer to integer.
 .TP
 .B IPV6_MTU_DISCOVER
-Control path mtu discovery on the socket.
+Control path-MTU discovery on the socket.
 See
 .B IP_MTU_DISCOVER
 in