diff --git a/src/openrct2/interface/Chat.cpp b/src/openrct2/interface/Chat.cpp
index 984ec3b2a8..f51abf981b 100644
--- a/src/openrct2/interface/Chat.cpp
+++ b/src/openrct2/interface/Chat.cpp
@@ -53,7 +53,7 @@ bool ChatAvailable()
 void ChatOpen()
 {
     gChatOpen = true;
-    _chatTextInputSession = ContextStartTextInput(_chatCurrentLine, CHAT_MAX_MESSAGE_LENGTH);
+    _chatTextInputSession = ContextStartTextInput(_chatCurrentLine, kChatMaxMessageLength);
 }
 
 void ChatClose()
diff --git a/src/openrct2/interface/Chat.h b/src/openrct2/interface/Chat.h
index 3963da6f3b..6d9b1d8c85 100644
--- a/src/openrct2/interface/Chat.h
+++ b/src/openrct2/interface/Chat.h
@@ -16,7 +16,7 @@
 
 constexpr int8_t kChatHistorySize = 10;
 constexpr int16_t kChatInputSize = 1024;
-#define CHAT_MAX_MESSAGE_LENGTH 200
+constexpr int kChatMaxMessageLength = 200;
 #define CHAT_MAX_WINDOW_WIDTH 600
 
 struct DrawPixelInfo;