diff --git a/keywords.conf.d/emulation.conf b/keywords.conf.d/emulation.conf
index f7234c8..7321deb 100644
--- a/keywords.conf.d/emulation.conf
+++ b/keywords.conf.d/emulation.conf
@@ -1,5 +1,5 @@
 # docker
-app-emulation/docker ~amd64
+<app-emulation/docker-1.9.0 ~amd64
 dev-go/sanitized-anchor-name ~amd64
 dev-go/blackfriday ~amd64
 dev-go/go-md2man ~amd64
diff --git a/package_mask.conf.d/emulation.conf b/package_mask.conf.d/emulation.conf
new file mode 100644
index 0000000..4cc7739
--- /dev/null
+++ b/package_mask.conf.d/emulation.conf
@@ -0,0 +1,2 @@
+# we don't feel comfortable testing this yet
+<app-emulation/docker-1.9.0