diff --git a/android/variable.go b/android/variable.go
index d2dc5b9..531125d 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -24,7 +24,7 @@
 )
 
 func init() {
-	RegisterBottomUpMutator("variable", variableMutator)
+	RegisterBottomUpMutator("variable", variableMutator).Parallel()
 }
 
 type variableProperties struct {