diff --git a/Editor/SDKInitialiseOnLoad.cs b/Editor/SDKInitialiseOnLoad.cs
index 73e883e1..a0f3b62c 100644
--- a/Editor/SDKInitialiseOnLoad.cs
+++ b/Editor/SDKInitialiseOnLoad.cs
@@ -70,7 +70,9 @@ static void ImportBasisPackages()
                Directory.Exists("Packages/com.basis.sdk") &&
                Directory.Exists("Packages/com.basis.odinserializer"))
             {
+#if !BASIS_BUNDLE_MANAGEMENT
                 PlayerSettings.SetScriptingDefineSymbolsForGroup(EditorUserBuildSettings.selectedBuildTargetGroup, "BASIS_BUNDLE_MANAGEMENT");
+#endif
                 return;
             }
             string projectRoot = Directory.GetParent(Application.dataPath).FullName;