diff --git a/specs-go/v1/manifest.go b/specs-go/v1/manifest.go
index 2b8328861..c715ee23c 100644
--- a/specs-go/v1/manifest.go
+++ b/specs-go/v1/manifest.go
@@ -28,5 +28,5 @@ type Manifest struct {
 	Layers []Descriptor `json:"layers"`
 
 	// Annotations contains arbitrary metadata for the manifest list.
-	Annotations map[string]string `json:"annotations,omitempty"`
+	Annotations map[string]string `json:"annotations"`
 }