Index: src/OFArray.m
==================================================================
--- src/OFArray.m
+++ src/OFArray.m
@@ -132,11 +132,11 @@
 	return [self retain];
 }
 
 - (id)mutableCopy
 {
-	OFArray *new = [OFMutableArray array];
+	OFArray *new = [[OFMutableArray alloc] init];
 	OFObject **objs;
 	size_t len, i;
 
 	objs = [array data];
 	len = [array count];

Index: src/OFDataArray.m
==================================================================
--- src/OFDataArray.m
+++ src/OFDataArray.m
@@ -120,11 +120,11 @@
 	return self;
 }
 
 - (id)copy
 {
-	OFDataArray *new = [OFDataArray dataArrayWithItemSize: itemsize];
+	OFDataArray *new = [[OFDataArray alloc] initWithItemSize: itemsize];
 	[new addNItems: count
 	    fromCArray: data];
 
 	return new;
 }
@@ -252,13 +252,13 @@
 	return self;
 }
 
 - (id)copy
 {
-	OFDataArray *new = [OFBigDataArray dataArrayWithItemSize: itemsize];
+	OFDataArray *new = [[OFBigDataArray alloc] initWithItemSize: itemsize];
 
 	[new addNItems: count
 	    fromCArray: data];
 
 	return new;
 }
 @end

Index: src/OFMutableArray.m
==================================================================
--- src/OFMutableArray.m
+++ src/OFMutableArray.m
@@ -15,11 +15,11 @@
 #import "OFExceptions.h"
 
 @implementation OFMutableArray
 - (id)copy
 {
-	OFArray *new = [OFArray array];
+	OFArray *new = [[OFArray alloc] init];
 	OFObject **objs;
 	size_t len, i;
 
 	objs = [array data];
 	len = [array count];

Index: src/OFMutableString.m
==================================================================
--- src/OFMutableString.m
+++ src/OFMutableString.m
@@ -33,11 +33,11 @@
 #endif
 
 @implementation OFMutableString
 - (id)copy
 {
-	return [OFString stringWithCString: string];
+	return [[OFString alloc] initWithCString: string];
 }
 
 - setToCString: (const char*)str
 {
 	size_t len;

Index: src/OFString.m
==================================================================
--- src/OFString.m
+++ src/OFString.m
@@ -246,11 +246,11 @@
 	return [self retain];
 }
 
 - (id)mutableCopy
 {
-	return [OFMutableString stringWithCString: string];
+	return [[OFMutableString alloc] initWithCString: string];
 }
 
 - (BOOL)isEqual: (id)obj
 {
 	if (![obj isKindOf: [OFString class]])