diff --git a/java/prebuilt_apis.go b/java/prebuilt_apis.go
index 44650a6..9449707 100644
--- a/java/prebuilt_apis.go
+++ b/java/prebuilt_apis.go
@@ -212,6 +212,10 @@
 	mctx.CreateModule(systemModulesImportFactory, &props)
 }
 
+func PrebuiltApiModuleName(module, scope, version string) string {
+	return module + ".api." + scope + "." + version
+}
+
 func prebuiltApiFiles(mctx android.LoadHookContext, p *prebuiltApis) {
 	// <apiver>/<scope>/api/<module>.txt
 	apiLevelFiles := globApiDirs(mctx, p, "api/*.txt")
@@ -220,12 +224,9 @@
 	}
 
 	// Create modules for all (<module>, <scope, <version>) triplets,
-	apiModuleName := func(module, scope, version string) string {
-		return module + ".api." + scope + "." + version
-	}
 	for _, f := range apiLevelFiles {
 		module, version, scope := parseFinalizedPrebuiltPath(mctx, f)
-		createApiModule(mctx, apiModuleName(module, scope, strconv.Itoa(version)), f)
+		createApiModule(mctx, PrebuiltApiModuleName(module, scope, strconv.Itoa(version)), f)
 	}
 
 	// Figure out the latest version of each module/scope
@@ -266,7 +267,7 @@
 	// Sort the keys in order to make build.ninja stable
 	for _, k := range android.SortedStringKeys(latest) {
 		info := latest[k]
-		name := apiModuleName(info.module, info.scope, "latest")
+		name := PrebuiltApiModuleName(info.module, info.scope, "latest")
 		createApiModule(mctx, name, info.path)
 	}
 
@@ -278,7 +279,7 @@
 			filename, _, scope := parsePrebuiltPath(mctx, f)
 			referencedModule := strings.TrimSuffix(filename, "-incompatibilities")
 
-			createApiModule(mctx, apiModuleName(referencedModule+"-incompatibilities", scope, "latest"), f)
+			createApiModule(mctx, PrebuiltApiModuleName(referencedModule+"-incompatibilities", scope, "latest"), f)
 
 			incompatibilities[referencedModule+"."+scope] = true
 		}
@@ -286,7 +287,7 @@
 	// Create empty incompatibilities files for remaining modules
 	for _, k := range android.SortedStringKeys(latest) {
 		if _, ok := incompatibilities[k]; !ok {
-			createEmptyFile(mctx, apiModuleName(latest[k].module+"-incompatibilities", latest[k].scope, "latest"))
+			createEmptyFile(mctx, PrebuiltApiModuleName(latest[k].module+"-incompatibilities", latest[k].scope, "latest"))
 		}
 	}
 }