diff --git a/heat_integrationtests/post_test_hook.sh b/heat_integrationtests/post_test_hook.sh
index b12f1887f7..51c76a0df1 100755
--- a/heat_integrationtests/post_test_hook.sh
+++ b/heat_integrationtests/post_test_hook.sh
@@ -21,6 +21,7 @@ sudo -E $DEST/heat/heat_integrationtests/prepare_test_env.sh
 sudo -E $DEST/heat/heat_integrationtests/prepare_test_network.sh
 
 cd $DEST/tempest
+sudo sed -i -e '/group_regex/c\group_regex=heat_integrationtests\\.api\\.test_heat_api(?:\\.|_)([^_]+)' .testr.conf
 sudo tempest run --regex heat_integrationtests
 
 sudo -E $DEST/heat/heat_integrationtests/cleanup_test_env.sh