diff --git a/cmd/soong_build/main.go b/cmd/soong_build/main.go
index f8c32cb..b7c4198 100644
--- a/cmd/soong_build/main.go
+++ b/cmd/soong_build/main.go
@@ -75,6 +75,7 @@
 	ctx.RegisterModuleType("android_app", java.AndroidAppFactory)
 
 	// Mutators
+	ctx.RegisterEarlyMutator("host_or_device", common.HostOrDeviceMutator)
 	ctx.RegisterEarlyMutator("arch", common.ArchMutator)
 	ctx.RegisterEarlyMutator("link", cc.LinkageMutator)
 	ctx.RegisterEarlyMutator("test_per_src", cc.TestPerSrcMutator)