diff --git a/context_test.go b/context_test.go
index 6308ba9..6b9b599 100644
--- a/context_test.go
+++ b/context_test.go
@@ -461,17 +461,17 @@ func createTestMutator(ctx TopDownMutatorContext) {
 		Deps []string
 	}
 
-	ctx.CreateModule(newBarModule, &props{
+	ctx.CreateModule(newBarModule, "new_bar", &props{
 		Name: "B",
 		Deps: []string{"D"},
 	})
 
-	ctx.CreateModule(newBarModule, &props{
+	ctx.CreateModule(newBarModule, "new_bar", &props{
 		Name: "C",
 		Deps: []string{"D"},
 	})
 
-	ctx.CreateModule(newFooModule, &props{
+	ctx.CreateModule(newFooModule, "new_foo", &props{
 		Name: "D",
 	})
 }
diff --git a/module_ctx.go b/module_ctx.go
index 787f483..b241712 100644
--- a/module_ctx.go
+++ b/module_ctx.go
@@ -862,7 +862,7 @@ type TopDownMutatorContext interface {
 
 	// CreateModule creates a new module by calling the factory method for the specified moduleType, and applies
 	// the specified property structs to it as if the properties were set in a blueprint file.
-	CreateModule(ModuleFactory, ...interface{}) Module
+	CreateModule(ModuleFactory, string, ...interface{}) Module
 }
 
 type BottomUpMutatorContext interface {
@@ -1228,13 +1228,14 @@ func (mctx *mutatorContext) Rename(name string) {
 	mctx.rename = append(mctx.rename, rename{mctx.module.group, name})
 }
 
-func (mctx *mutatorContext) CreateModule(factory ModuleFactory, props ...interface{}) Module {
+func (mctx *mutatorContext) CreateModule(factory ModuleFactory, typeName string, props ...interface{}) Module {
 	module := newModule(factory)
 
 	module.relBlueprintsFile = mctx.module.relBlueprintsFile
 	module.pos = mctx.module.pos
 	module.propertyPos = mctx.module.propertyPos
 	module.createdBy = mctx.module
+	module.typeName = typeName
 
 	for _, p := range props {
 		err := proptools.AppendMatchingProperties(module.properties, p, nil)