diff --git a/Source/NSArray.m b/Source/NSArray.m
index 93857fe49..0e63c74da 100644
--- a/Source/NSArray.m
+++ b/Source/NSArray.m
@@ -30,6 +30,11 @@
 
 @implementation NSArray
 
++ allocWithZone: (NSZone*)z
+{
+  return [NSGArray allocWithZone:z];
+}
+
 + array
 {
   return [[[NSGArray alloc] init] autorelease];
@@ -270,6 +275,11 @@
 
 @implementation NSMutableArray: NSArray
 
++ allocWithZone: (NSZone*)z
+{
+  return [NSGMutableArray allocWithZone:z];
+}
+
 + arrayWithCapacity: (unsigned)numItems
 {
   return [[[[NSGMutableArray class] alloc] initWithCapacity:numItems]