diff --git a/version.props b/version.props
index 1589187a38..68a61ffe6e 100644
--- a/version.props
+++ b/version.props
@@ -1,6 +1,6 @@
 <!-- This file may be overwritten by automation. Only values allowed here are VersionPrefix and VersionSuffix.  -->
 <Project>
   <PropertyGroup>
-    <VersionSuffix>rtm</VersionSuffix>
+    <VersionSuffix>preview1</VersionSuffix>
   </PropertyGroup>
 </Project>