diff --git a/src/ucar/unidata/idv/resources/version.properties b/src/ucar/unidata/idv/resources/version.properties
index ed506d70a9..e737540a42 100644
--- a/src/ucar/unidata/idv/resources/version.properties
+++ b/src/ucar/unidata/idv/resources/version.properties
@@ -1,6 +1,6 @@
 idv.version.major=5
 idv.version.minor=3
-idv.version.revision=
+idv.version.revision=u1
 idv.description=The Integrated Data Viewer (IDV).
 idv.build.date=@DATE@
 idv.jython.version=2.7