diff --git a/Source/NSDeallocateObject.m b/Source/NSDeallocateObject.m
index c40d733b2..7630096d6 100644
--- a/Source/NSDeallocateObject.m
+++ b/Source/NSDeallocateObject.m
@@ -26,6 +26,6 @@
 void NSDeallocateObject(NSObject *anObject)
 {
   if ((anObject!=nil) && CLS_ISCLASS(((id)anObject)->class_pointer))
-    NSZoneFree (anObject);
+    NSZoneFree ([anObject zone], anObject);
   return;
 }