diff --git a/api/api.go b/api/api.go
index e09be03..431d6d8 100644
--- a/api/api.go
+++ b/api/api.go
@@ -429,7 +429,7 @@
 }
 
 // combined_apis bp2build converter
-func (a *CombinedApis) ConvertWithBp2build(ctx android.TopDownMutatorContext) {
+func (a *CombinedApis) ConvertWithBp2build(ctx android.Bp2buildMutatorContext) {
 	basePrefix := "non-updatable"
 	scopeToSuffix := map[string]string{
 		"public":        "-current.txt",