diff --git a/src/lib/mdns/platform/Mdns.h b/src/lib/mdns/platform/Mdns.h
index 778fcb19f643ee..8f2c4d4b7250f7 100644
--- a/src/lib/mdns/platform/Mdns.h
+++ b/src/lib/mdns/platform/Mdns.h
@@ -35,12 +35,12 @@
 namespace chip {
 namespace Mdns {
 
-static constexpr uint8_t kMdnsNameMaxSize         = 33; // [Node]-[Fabric] ID in hex - 16+1+16
-static constexpr uint8_t kMdnsProtocolTextMaxSize = 4;  // "_tcp" or "_udp"
-static constexpr uint8_t kMdnsTypeMaxSize         = 6;  // "_chip", "_chipc" or "_chipd"
+static constexpr uint8_t kMdnsNameMaxSize            = 33; // [Node]-[Fabric] ID in hex - 16+1+16
+static constexpr uint8_t kMdnsProtocolTextMaxSize    = 4;  // "_tcp" or "_udp"
+static constexpr uint8_t kMdnsTypeMaxSize            = 6;  // "_chip", "_chipc" or "_chipd"
 static constexpr uint8_t kMdnsTypeAndProtocolMaxSize = kMdnsTypeMaxSize + kMdnsProtocolTextMaxSize + 1; // <type>.<protocol>
-static constexpr uint8_t kMdnsTextKeyMaxSize      = 9;
-static constexpr uint16_t kMdnsTextMaxSize        = 64;
+static constexpr uint8_t kMdnsTextKeyMaxSize         = 9;
+static constexpr uint16_t kMdnsTextMaxSize           = 64;
 
 enum class MdnsServiceProtocol : uint8_t
 {
diff --git a/src/platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.h b/src/platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.h
index 39ac2f7ceaea19..c5e6ecaca1c5fb 100644
--- a/src/platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.h
+++ b/src/platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.h
@@ -121,7 +121,7 @@ class GenericThreadStackManagerImpl_OpenThread
     {
         static constexpr uint8_t kMaxServicesNumber   = CHIP_DEVICE_CONFIG_THREAD_SRP_MAX_SERVICES;
         static constexpr uint8_t kMaxInstanceNameSize = chip::Mdns::kMdnsNameMaxSize;
-        static constexpr uint8_t kMaxNameSize         = chip::Mdns::kMdnsTypeAndProtocolMaxSize + 1;
+        static constexpr uint8_t kMaxNameSize         = chip::Mdns::kMdnsTypeAndProtocolMaxSize;
         static constexpr uint8_t kMaxHostNameSize     = 16;
         // Thread only supports operational discovery
         static constexpr uint8_t kMaxTxtEntriesNumber = chip::Mdns::OperationalAdvertisingParameters::kNumAdvertisingTxtEntries;