diff --git a/pentaho-reporting-flow-engine.changes b/pentaho-reporting-flow-engine.changes
index b1d14c7..11fabdc 100644
--- a/pentaho-reporting-flow-engine.changes
+++ b/pentaho-reporting-flow-engine.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Sep 10 06:57:49 UTC 2017 - fstrba@suse.com
+
+- Specify java source and target level 1.6 in order to allow
+  building with jdk9
+
 -------------------------------------------------------------------
 Wed Jul  9 10:33:50 UTC 2014 - tchvatal@suse.com
 
diff --git a/pentaho-reporting-flow-engine.spec b/pentaho-reporting-flow-engine.spec
index 36b07c2..d60278e 100644
--- a/pentaho-reporting-flow-engine.spec
+++ b/pentaho-reporting-flow-engine.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package pentaho-reporting-flow-engine
 #
-# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -75,7 +75,7 @@ build-jar-repository -s -p lib commons-logging-api libbase libloader \
 
 %build
 ant \
-    -Dant.build.javac.source=1.5 -Dant.build.javac.target=1.5 \
+    -Dant.build.javac.source=1.6 -Dant.build.javac.target=1.6 \
     jar javadoc
 
 %install