diff --git a/vm/aging_collector.cpp b/vm/aging_collector.cpp
index 6e3e61412a..5e284be587 100644
--- a/vm/aging_collector.cpp
+++ b/vm/aging_collector.cpp
@@ -3,12 +3,12 @@
 namespace factor
 {
 
-aging_collector::aging_collector(factor_vm *myvm_) :
+aging_collector::aging_collector(factor_vm *parent_) :
 	copying_collector<aging_space,aging_policy>(
-		myvm_,
-		&myvm_->gc_stats.aging_stats,
-		myvm_->data->aging,
-		aging_policy(myvm_)) {}
+		parent_,
+		&parent_->gc_stats.aging_stats,
+		parent_->data->aging,
+		aging_policy(parent_)) {}
 
 void factor_vm::collect_aging()
 {