diff --git a/schema/types/labels.go b/schema/types/labels.go
index b8317f32..ce182db7 100644
--- a/schema/types/labels.go
+++ b/schema/types/labels.go
@@ -7,7 +7,7 @@ import (
 )
 
 var ValidOSArch = map[string][]string{
-	"linux":   {"amd64", "i386"},
+	"linux":   {"amd64", "i386", "arm"},
 	"freebsd": {"amd64", "i386", "arm"},
 	"darwin":  {"x86_64", "i386"},
 }
diff --git a/schema/types/labels_test.go b/schema/types/labels_test.go
index 90d0578c..95776d90 100644
--- a/schema/types/labels_test.go
+++ b/schema/types/labels_test.go
@@ -25,7 +25,7 @@ func TestLabels(t *testing.T) {
 		},
 		{
 			`[{"name": "os", "value": "linux"}, {"name": "arch", "value": "arm"}]`,
-			`bad arch "arm" for linux`,
+			"",
 		},
 		{
 			`[{"name": "name"}]`,