diff --git a/jna.spec b/jna.spec
index e12e1fb..d87c55f 100644
--- a/jna.spec
+++ b/jna.spec
@@ -1,6 +1,6 @@
 Name:           jna
 Version:        4.1.0
-Release:        7%{?dist}
+Release:        8%{?dist}
 Summary:        Pure Java access to native libraries
 License:        LGPLv2 or ASL 2.0
 URL:            https://github.com/twall/jna
@@ -96,7 +96,7 @@ chmod -c 0644 LICENSE OTHERS CHANGES.md
 # We pass -Ddynlink.native which comes from our patch because
 # upstream doesn't want to default to dynamic linking.
 #ant -Dcflags_extra.native="%{optflags}" -Ddynlink.native=true native compile javadoc jar contrib-jars
-ant -Dcflags_extra.native="%{optflags}" -Ddynlink.native=true native dist
+ant -Dcompatibility=1.6 -Dplatform.compatibility=1.6 -Dcflags_extra.native="%{optflags}" -Ddynlink.native=true native dist
 # remove compiled contribs
 find contrib -name build -exec rm -rf {} \; || :
 
@@ -144,6 +144,9 @@ cp -a doc/javadoc/* %{buildroot}%{_javadocdir}/%{name}
 
 
 %changelog
+* Thu Jun 11 2015 Mikolaj Izdebski <mizdebsk@redhat.com> - 4.1.0-8
+- Force Java 1.6 source/target (rhbz#842609)
+
 * Wed Oct 01 2014 Michal Srb <msrb@redhat.com> - 4.1.0-7
 - Fix for 32-bit systems (Resolves: rhbz#1148349)
 - Fix FTBFS (Resolves: rhbz#1106955)