diff --git a/Source/Core/Common/Network.cpp b/Source/Core/Common/Network.cpp
index 4c56eea8e7..a928e8e831 100644
--- a/Source/Core/Common/Network.cpp
+++ b/Source/Core/Common/Network.cpp
@@ -44,7 +44,7 @@ std::string MacAddressToString(const MACAddress& mac)
 std::optional<MACAddress> StringToMacAddress(std::string_view mac_string)
 {
   if (mac_string.empty())
-    return {};
+    return std::nullopt;
 
   int x = 0;
   MACAddress mac{};
@@ -68,7 +68,7 @@ std::optional<MACAddress> StringToMacAddress(std::string_view mac_string)
   // nibble is a character in the MAC address, making 12 characters
   // in total.
   if (x / 2 != MAC_ADDRESS_SIZE)
-    return {};
+    return std::nullopt;
 
   return std::make_optional(mac);
 }