diff --git a/android/testing.go b/android/testing.go
index 196b22e..7440869 100644
--- a/android/testing.go
+++ b/android/testing.go
@@ -197,8 +197,8 @@
 
 type TestContext struct {
 	*Context
-	preArch, preDeps, postDeps, finalDeps []RegisterMutatorFunc
-	NameResolver                          *NameResolver
+	preArch, preDeps, postDeps, postApex, finalDeps []RegisterMutatorFunc
+	NameResolver                                    *NameResolver
 
 	// The list of singletons registered for the test.
 	singletons sortableComponents
@@ -229,6 +229,10 @@
 	ctx.postDeps = append(ctx.postDeps, f)
 }
 
+func (ctx *TestContext) PostApexMutators(f RegisterMutatorFunc) {
+	ctx.postApex = append(ctx.postApex, f)
+}
+
 func (ctx *TestContext) FinalDepsMutators(f RegisterMutatorFunc) {
 	ctx.finalDeps = append(ctx.finalDeps, f)
 }
@@ -449,7 +453,7 @@
 func (ctx *TestContext) Register() {
 	globalOrder := globallyRegisteredComponentsOrder()
 
-	mutators := collateRegisteredMutators(ctx.preArch, ctx.preDeps, ctx.postDeps, ctx.finalDeps)
+	mutators := collateRegisteredMutators(ctx.preArch, ctx.preDeps, ctx.postDeps, ctx.postApex, ctx.finalDeps)
 	// Ensure that the mutators used in the test are in the same order as they are used at runtime.
 	globalOrder.mutatorOrder.enforceOrdering(mutators)
 	mutators.registerAll(ctx.Context)