diff -Nru freeplane-1.6.6/debian/changelog freeplane-1.6.6/debian/changelog
--- freeplane-1.6.6/debian/changelog	2017-10-03 18:36:50.000000000 +0200
+++ freeplane-1.6.6/debian/changelog	2017-10-20 19:48:47.000000000 +0200
@@ -1,3 +1,9 @@
+freeplane (1.6.6-1ubuntu1) artful-updates; urgency=medium
+
+  * Fix broken builds by disabling parallel builds (Fixes LP: #1720670)
+
+ -- Hans Joachim Desserud <ubuntu@desserud.org>  Fri, 20 Oct 2017 19:48:47 +0200
+
 freeplane (1.6.6-1build1) artful; urgency=medium
 
   * No-change rebuild to pick up MANIFEST.MF file (Fixes LP: #1720670)
diff -Nru freeplane-1.6.6/debian/rules freeplane-1.6.6/debian/rules
--- freeplane-1.6.6/debian/rules	2017-09-17 16:41:53.000000000 +0200
+++ freeplane-1.6.6/debian/rules	2017-10-20 19:48:04.000000000 +0200
@@ -8,7 +8,7 @@
 
 
 %:
-	dh $@ --buildsystem=gradle
+	dh $@ --buildsystem=gradle --no-parallel
 
 override_dh_auto_build:
 	dh_auto_build -- build -x test -x check_translation