diff --git a/bin/dig/dig.1 b/bin/dig/dig.1
index 5f3f5dbbc5..f8943144fd 100644
--- a/bin/dig/dig.1
+++ b/bin/dig/dig.1
@@ -610,7 +610,7 @@ Send (don\*(Aqt send) an EDNS Client Subnet option with the specified IP address
 .sp
 \fBdig +subnet=0\&.0\&.0\&.0/0\fR, or simply
 \fBdig +subnet=0\fR
-for short, sends an EDNS client\-subnet option with an empty address and a source prefix\-length of zero, which signals a resolver that the client\*(Aqs address information must
+for short, sends an EDNS CLIENT\-SUBNET option with an empty address and a source prefix\-length of zero, which signals a resolver that the client\*(Aqs address information must
 \fInot\fR
 be used when resolving this query\&.
 .RE
diff --git a/bin/dig/dig.html b/bin/dig/dig.html
index 0d65e62dde..255c055646 100644
--- a/bin/dig/dig.html
+++ b/bin/dig/dig.html
@@ -620,7 +620,7 @@
 <p>
               <span class="command"><strong>dig +subnet=0.0.0.0/0</strong></span>, or simply
               <span class="command"><strong>dig +subnet=0</strong></span> for short, sends an EDNS
-              client-subnet option with an empty address and a source
+              CLIENT-SUBNET option with an empty address and a source
               prefix-length of zero, which signals a resolver that
               the client's address information must
               <span class="emphasis"><em>not</em></span> be used when resolving
diff --git a/doc/arm/man.dig.html b/doc/arm/man.dig.html
index 6543e55b53..cc70677b67 100644
--- a/doc/arm/man.dig.html
+++ b/doc/arm/man.dig.html
@@ -638,7 +638,7 @@
 <p>
               <span class="command"><strong>dig +subnet=0.0.0.0/0</strong></span>, or simply
               <span class="command"><strong>dig +subnet=0</strong></span> for short, sends an EDNS
-              client-subnet option with an empty address and a source
+              CLIENT-SUBNET option with an empty address and a source
               prefix-length of zero, which signals a resolver that
               the client's address information must
               <span class="emphasis"><em>not</em></span> be used when resolving