diff --git a/contrib/teamcity/build.sh b/contrib/teamcity/build.sh
--- a/contrib/teamcity/build.sh
+++ b/contrib/teamcity/build.sh
@@ -47,7 +47,9 @@
 	echo "Skipping rpc testing due to disabled wallet functionality."
 elif [[ "${BRANCH}" == "master" ]]; then
 	./test/functional/test_runner.py --cutoff=600 --tmpdirprefix=output
+	./test/functional/test_runner.py --cutoff=600 --tmpdirprefix=output --nodes_arg="-greatwallactivationtime=1546300800"
 else
 	./test/functional/test_runner.py --tmpdirprefix=output
+	./test/functional/test_runner.py --tmpdirprefix=output --nodes_arg="-greatwallactivationtime=1546300800"
 fi