diff --git a/android/register.go b/android/register.go
index 6cfc205c3..33e9ea32a 100644
--- a/android/register.go
+++ b/android/register.go
@@ -165,29 +165,30 @@ func NewContext(config Config) *Context {
 	return ctx
 }
 
-// RegisterForBazelConversion registers an alternate shadow pipeline of
-// singletons, module types and mutators to register for converting Blueprint
-// files to semantically equivalent BUILD files.
-func (ctx *Context) RegisterForBazelConversion() {
+// Helper function to register the module types used in bp2build and
+// api_bp2build.
+func registerModuleTypes(ctx *Context) {
 	for _, t := range moduleTypes {
 		t.register(ctx)
 	}
-
 	// Required for SingletonModule types, even though we are not using them.
 	for _, t := range singletons {
 		t.register(ctx)
 	}
+}
 
+// RegisterForBazelConversion registers an alternate shadow pipeline of
+// singletons, module types and mutators to register for converting Blueprint
+// files to semantically equivalent BUILD files.
+func (ctx *Context) RegisterForBazelConversion() {
+	registerModuleTypes(ctx)
 	RegisterMutatorsForBazelConversion(ctx, bp2buildPreArchMutators)
 }
 
 // RegisterForApiBazelConversion is similar to RegisterForBazelConversion except that
 // it only generates API targets in the generated  workspace
 func (ctx *Context) RegisterForApiBazelConversion() {
-	for _, t := range moduleTypes {
-		t.register(ctx)
-	}
-
+	registerModuleTypes(ctx)
 	RegisterMutatorsForApiBazelConversion(ctx, bp2buildPreArchMutators)
 }