diff --git a/libcontainer/cgroups/fs/freezer_test.go b/libcontainer/cgroups/fs/freezer_test.go
index 88abb675..d5b107af 100644
--- a/libcontainer/cgroups/fs/freezer_test.go
+++ b/libcontainer/cgroups/fs/freezer_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (
diff --git a/libcontainer/cgroups/fs/hugetlb_test.go b/libcontainer/cgroups/fs/hugetlb_test.go
index a4c2588b..4eeb3fca 100644
--- a/libcontainer/cgroups/fs/hugetlb_test.go
+++ b/libcontainer/cgroups/fs/hugetlb_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (
diff --git a/libcontainer/cgroups/fs/name.go b/libcontainer/cgroups/fs/name.go
index 2b64a034..264d0eea 100644
--- a/libcontainer/cgroups/fs/name.go
+++ b/libcontainer/cgroups/fs/name.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (
diff --git a/libcontainer/cgroups/fs/net_cls.go b/libcontainer/cgroups/fs/net_cls.go
index abee87c9..35df2f59 100644
--- a/libcontainer/cgroups/fs/net_cls.go
+++ b/libcontainer/cgroups/fs/net_cls.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (
diff --git a/libcontainer/cgroups/fs/net_cls_test.go b/libcontainer/cgroups/fs/net_cls_test.go
index c24ee037..439e656d 100644
--- a/libcontainer/cgroups/fs/net_cls_test.go
+++ b/libcontainer/cgroups/fs/net_cls_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (
diff --git a/libcontainer/cgroups/fs/net_prio.go b/libcontainer/cgroups/fs/net_prio.go
index 54edcfc7..294ff098 100644
--- a/libcontainer/cgroups/fs/net_prio.go
+++ b/libcontainer/cgroups/fs/net_prio.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (
diff --git a/libcontainer/cgroups/fs/net_prio_test.go b/libcontainer/cgroups/fs/net_prio_test.go
index 0ef4955b..532392b4 100644
--- a/libcontainer/cgroups/fs/net_prio_test.go
+++ b/libcontainer/cgroups/fs/net_prio_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fs
 
 import (