diff --git a/doc/sphinx/arm/ctrl-channel.rst b/doc/sphinx/arm/ctrl-channel.rst
index 5e705d4035..e53943b96f 100644
--- a/doc/sphinx/arm/ctrl-channel.rst
+++ b/doc/sphinx/arm/ctrl-channel.rst
@@ -98,7 +98,7 @@ following structure:
 The ``command`` parameter contains the name of the command to execute and it
 is mandatory.
 The ``arguments`` map contains the parameters required to carry out the
-given command. The exact content and format of the map are command specific.
+given command. The exact content and format of the map are command-specific.
 
 ``service`` is a list of the servers at which the control command is
 targeted. In the example above, the control command is targeted at the
diff --git a/doc/sphinx/arm/dhcp4-srv.rst b/doc/sphinx/arm/dhcp4-srv.rst
index 30afb478ea..a76c691cdb 100644
--- a/doc/sphinx/arm/dhcp4-srv.rst
+++ b/doc/sphinx/arm/dhcp4-srv.rst
@@ -5824,9 +5824,9 @@ finds multiple reservations for the same IP address.
 The ``reservations-lookup-first`` is a boolean parameter which controls whether
 host reservations lookup should be performed before lease lookup. This parameter
 has effect only when multi-threading is disabled. When multi-threading is
-enabled, host reservations lookup is always performed first to avoid lease
-lookup resource locking. The ``reservations-lookup-first`` parameter defaults to
-``false`` when multi-threading is disabled.
+enabled, host reservations lookup is always performed first to avoid lease-lookup
+resource locking. The ``reservations-lookup-first`` parameter defaults to ``false``
+when multi-threading is disabled.
 
 .. _host_reservations_as_basic_access_control4:
 
diff --git a/doc/sphinx/arm/dhcp6-srv.rst b/doc/sphinx/arm/dhcp6-srv.rst
index 06197d469b..b112e1e720 100644
--- a/doc/sphinx/arm/dhcp6-srv.rst
+++ b/doc/sphinx/arm/dhcp6-srv.rst
@@ -5026,8 +5026,8 @@ for the same IP address or delegated prefix.
 The ``reservations-lookup-first`` is a boolean parameter which controls whether
 host reservations lookup should be performed before lease lookup. This parameter
 has effect only when multi-threading is disabled. When multi-threading is
-enabled, host reservations lookup is always performed first to avoid lease
-lookup resource locking. The ``reservations-lookup-first`` defaults to ``false``
+enabled, host reservations lookup is always performed first to avoid lease-lookup
+resource locking. The ``reservations-lookup-first`` parameter defaults to ``false``
 when multi-threading is disabled.
 
 .. _host_reservations_as_basic_access_control6:
diff --git a/tools/check-for-json-errors-in-doc.sh b/tools/check-for-json-errors-in-doc.sh
index 0116e752ea..b8b460c336 100755
--- a/tools/check-for-json-errors-in-doc.sh
+++ b/tools/check-for-json-errors-in-doc.sh
@@ -32,20 +32,8 @@ for file in $files; do
 			comment=0
 			echo "" >> $work_file
 			continue
-		elif [ $comment -eq 0 -a $json -eq 0 -a $(echo "$line" | grep "^\s*{\|^\s*\".*{" | grep -v "}" | grep -v "key\|pre" | wc -l) -eq 1 ]; then
+		elif [ $comment -eq 0 -a $json -eq 0 -a $(echo "$line" | grep "^\s*{\|^\s*\".*{" | grep -v "}" | wc -l) -eq 1 ]; then
 			# if this is not a comment and the line starts with spaces followed by '{' or by '"' followed by "{"
-			# ignore dns config:
-			#      key "key.four.example.com." {
-			#          algorithm hmac-sha224;
-			#          secret "bZEG7Ow8OgAUPfLWV3aAUQ==";
-			#      };
-			# ignore detailed html:
-			#    .. raw:: html
-			#    <details><summary>Expand here!</summary>
-			#    <pre>{
-			#    ...
-			#    }</pre>
-			#    </details><br>
 			json=1
 			# ignore any map name before top level map
 			line=$(echo "$line" | sed "s/.*{/{/g")