diff --git a/android/sdk.go b/android/sdk.go
index 006b3a0..27756ce 100644
--- a/android/sdk.go
+++ b/android/sdk.go
@@ -218,6 +218,25 @@
 	Variants() []SdkAware
 }
 
+type SdkMemberTypeDependencyTag interface {
+	blueprint.DependencyTag
+
+	SdkMemberType() SdkMemberType
+}
+
+type sdkMemberDependencyTag struct {
+	blueprint.BaseDependencyTag
+	memberType SdkMemberType
+}
+
+func (t *sdkMemberDependencyTag) SdkMemberType() SdkMemberType {
+	return t.memberType
+}
+
+func DependencyTagForSdkMemberType(memberType SdkMemberType) SdkMemberTypeDependencyTag {
+	return &sdkMemberDependencyTag{memberType: memberType}
+}
+
 // Interface that must be implemented for every type that can be a member of an
 // sdk.
 //
diff --git a/sdk/sdk.go b/sdk/sdk.go
index 3b0752f..f22763c 100644
--- a/sdk/sdk.go
+++ b/sdk/sdk.go
@@ -65,11 +65,6 @@
 	Module_exports bool `blueprint:"mutated"`
 }
 
-type sdkMemberDependencyTag struct {
-	blueprint.BaseDependencyTag
-	memberType android.SdkMemberType
-}
-
 // Contains information about the sdk properties that list sdk members, e.g.
 // Java_header_libs.
 type sdkMemberListProperty struct {
@@ -81,7 +76,7 @@
 
 	// the dependency tag used for items in this list that can be used to determine the memberType
 	// for a resolved dependency.
-	dependencyTag *sdkMemberDependencyTag
+	dependencyTag android.SdkMemberTypeDependencyTag
 }
 
 func (p *sdkMemberListProperty) propertyName() string {
@@ -167,9 +162,7 @@
 
 			memberType: memberType,
 
-			dependencyTag: &sdkMemberDependencyTag{
-				memberType: memberType,
-			},
+			dependencyTag: android.DependencyTagForSdkMemberType(memberType),
 		}
 
 		listProperties = append(listProperties, memberListProperty)
diff --git a/sdk/update.go b/sdk/update.go
index 0d2e4e4..97bafa1 100644
--- a/sdk/update.go
+++ b/sdk/update.go
@@ -113,8 +113,8 @@
 
 	ctx.VisitDirectDeps(func(m android.Module) {
 		tag := ctx.OtherModuleDependencyTag(m)
-		if memberTag, ok := tag.(*sdkMemberDependencyTag); ok {
-			memberType := memberTag.memberType
+		if memberTag, ok := tag.(android.SdkMemberTypeDependencyTag); ok {
+			memberType := memberTag.SdkMemberType()
 
 			// Make sure that the resolved module is allowed in the member list property.
 			if !memberType.IsInstance(m) {