diff --git a/common/env.go b/common/env.go
index e33a025..3214baa 100644
--- a/common/env.go
+++ b/common/env.go
@@ -15,6 +15,7 @@
 package common
 
 import (
+	"android/soong"
 	"android/soong/env"
 
 	"github.com/google/blueprint"
@@ -27,6 +28,10 @@
 // compare the contents of the environment variables, rewriting the file if necessary to cause
 // a manifest regeneration.
 
+func init() {
+	soong.RegisterSingletonType("env", EnvSingleton)
+}
+
 func EnvSingleton() blueprint.Singleton {
 	return &envSingleton{}
 }