diff --git a/tigervnc.changes b/tigervnc.changes
index 0f03415..95380d2 100644
--- a/tigervnc.changes
+++ b/tigervnc.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Sep 11 14:12:30 UTC 2017 - fstrba@suse.com
+
+- Specify java source and target level 1.6 in order to be able to
+  build with jdk9
+
 -------------------------------------------------------------------
 Fri Aug 11 08:59:54 UTC 2017 - msrb@suse.com
 
diff --git a/tigervnc.spec b/tigervnc.spec
index 3115434..558a6e5 100644
--- a/tigervnc.spec
+++ b/tigervnc.spec
@@ -222,7 +222,7 @@ popd
 
 # Build java client
 pushd java
-cmake -DCMAKE_INSTALL_PREFIX:PATH=%{_prefix} -DJAVACFLAGS="-encoding utf8"
+cmake -DCMAKE_INSTALL_PREFIX:PATH=%{_prefix} -DJAVACFLAGS="-encoding utf8 -source 1.6 -target 1.6"
 make %{?_smp_mflags}
 popd