diff --git a/META-INF/MANIFEST.MF b/META-INF/MANIFEST.MF
index 8f8b0bfd3..19fc59bc6 100644
--- a/META-INF/MANIFEST.MF
+++ b/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Scala Distribution
 Bundle-SymbolicName: scala.tools.nsc;singleton:=true
-Bundle-Version: 2.8.0
+Bundle-Version: 2.8.1.alpha
 Eclipse-LazyStart: true
 Bundle-ClassPath: 
  .,
diff --git a/build.number b/build.number
index 88a6ad113..e00461fe6 100644
--- a/build.number
+++ b/build.number
@@ -1,5 +1,5 @@
 #Tue Sep 11 19:21:09 CEST 2007
 version.minor=8
-version.patch=0
+version.patch=1
 version.suffix=alpha
 version.major=2