diff --git a/src/openrct2/platform/Platform.macOS.mm b/src/openrct2/platform/Platform.macOS.mm
index ab9c013548..225dff23da 100644
--- a/src/openrct2/platform/Platform.macOS.mm
+++ b/src/openrct2/platform/Platform.macOS.mm
@@ -108,7 +108,7 @@ namespace Platform
         @autoreleasepool {
             if (input == NULL)
             {
-                return NULL;
+                return 0;
             }
 
             NSString* inputDecomp = [NSString stringWithUTF8String:input];