diff --git a/cc/cmakelists.go b/cc/cmakelists.go
index 9b32182..c25578e 100644
--- a/cc/cmakelists.go
+++ b/cc/cmakelists.go
@@ -82,7 +82,7 @@
 func getEnvVariable(name string, ctx android.SingletonContext) string {
 	// Using android.Config.Getenv instead of os.getEnv to guarantee soong will
 	// re-run in case this environment variable changes.
-	return ctx.Config().(android.Config).Getenv(name)
+	return ctx.Config().Getenv(name)
 }
 
 func exists(path string) bool {