diff --git a/src/universal/bin/sbt.bat b/src/universal/bin/sbt.bat
index 3625438d9..bf447dc98 100644
--- a/src/universal/bin/sbt.bat
+++ b/src/universal/bin/sbt.bat
@@ -151,7 +151,7 @@ if /I "%JAVA_VERSION%" GEQ "1.8" (
     if not exist %PRELOAD_SBT_JAR% (
       if exist "%SBT_HOME%\..\lib\local-preloaded\" (
         echo 'about to robocopy'
-        robocopy "%SBT_HOME%\..\lib\local-preloaded\" "%UserProfile%\.sbt\preloaded"
+        robocopy "%SBT_HOME%\..\lib\local-preloaded" "%UserProfile%\.sbt\preloaded" /E
       )
     )
   )