diff --git a/uppsrc/ide/Upgrade.cpp b/uppsrc/ide/Upgrade.cpp
index fb6dd52c6..ea3c1f6d5 100644
--- a/uppsrc/ide/Upgrade.cpp
+++ b/uppsrc/ide/Upgrade.cpp
@@ -25,7 +25,6 @@ void Ide::UpgradeTheIDE()
 	
 	targetmode = 1;
 
-	Clean();
 	if(Build()) {
 		FileDelete(bakpath);
 		if(FileExists(bakpath))