diff --git a/hack/PACKAGERS.md b/hack/PACKAGERS.md
index 5afa381005..47e8413bf3 100644
--- a/hack/PACKAGERS.md
+++ b/hack/PACKAGERS.md
@@ -160,15 +160,23 @@ export DOCKER_BUILDTAGS='apparmor'
 There are build tags for disabling graphdrivers as well. By default, support
 for all graphdrivers are built in.
 
-To disable devicemapper
+To disable btrfs:
+```bash
+export DOCKER_BUILDTAGS='exclude_graphdriver_btrfs'
+```
+
+To disable devicemapper:
 ```bash
 export DOCKER_BUILDTAGS='exclude_graphdriver_devicemapper'
 ```
-To disable aufs
+
+To disable aufs:
 ```bash
 export DOCKER_BUILDTAGS='exclude_graphdriver_aufs'
 ```
 
+NOTE: if you need to set more than one build tag, space separate them.
+
 ### Static Daemon
 
 If it is feasible within the constraints of your distribution, you should
diff --git a/runtime/runtime.go b/runtime/runtime.go
index 43230488a2..4408e13902 100644
--- a/runtime/runtime.go
+++ b/runtime/runtime.go
@@ -16,7 +16,6 @@ import (
 	"github.com/dotcloud/docker/runtime/execdriver/execdrivers"
 	"github.com/dotcloud/docker/runtime/execdriver/lxc"
 	"github.com/dotcloud/docker/runtime/graphdriver"
-	_ "github.com/dotcloud/docker/runtime/graphdriver/btrfs"
 	_ "github.com/dotcloud/docker/runtime/graphdriver/vfs"
 	_ "github.com/dotcloud/docker/runtime/networkdriver/lxc"
 	"github.com/dotcloud/docker/runtime/networkdriver/portallocator"
diff --git a/runtime/runtime_btrfs.go b/runtime/runtime_btrfs.go
new file mode 100644
index 0000000000..c59b103ff9
--- /dev/null
+++ b/runtime/runtime_btrfs.go
@@ -0,0 +1,7 @@
+// +build !exclude_graphdriver_btrfs
+
+package runtime
+
+import (
+	_ "github.com/dotcloud/docker/runtime/graphdriver/btrfs"
+)