diff --git a/src/network/room.h b/src/network/room.h
index 5b5ab19e03..cf7364e244 100644
--- a/src/network/room.h
+++ b/src/network/room.h
@@ -45,9 +45,6 @@ constexpr MacAddress NoPreferredMac = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 // 802.11 broadcast MAC address
 constexpr MacAddress BroadcastMac = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 
-/// Converts a MAC address to a string representation.
-std::string MacAddressToString(const MacAddress& address);
-
 // The different types of messages that can be sent. The first byte of each packet defines the type
 enum RoomMessageTypes : u8 {
     IdJoinRequest = 1,