diff --git a/Assets/Mirror/CompilerSymbols/PreprocessorDefine.cs b/Assets/Mirror/CompilerSymbols/PreprocessorDefine.cs
index baf079ea9..1d363b823 100644
--- a/Assets/Mirror/CompilerSymbols/PreprocessorDefine.cs
+++ b/Assets/Mirror/CompilerSymbols/PreprocessorDefine.cs
@@ -29,7 +29,8 @@ public static void AddDefineSymbols()
                 "MIRROR_85_OR_NEWER",
                 "MIRROR_86_OR_NEWER",
                 "MIRROR_89_OR_NEWER",
-                "MIRROR_90_OR_NEWER"
+                "MIRROR_90_OR_NEWER",
+                "MIRROR_93_OR_NEWER"
             };
 
             // only touch PlayerSettings if we actually modified it,