Index: tests/OFObject.m
==================================================================
--- tests/OFObject.m
+++ tests/OFObject.m
@@ -24,11 +24,11 @@
 	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
 	OFObject *obj = [[[OFObject alloc] init] autorelease];
 	void *p, *q, *r;
 
 	EXPECT_EXCEPTION(@"Detect freeing of memory not allocated by object",
-	    OFMemoryNotPartOfObjectException, [obj freeMemory: NULL])
+	    OFMemoryNotPartOfObjectException, [obj freeMemory: (void*)1])
 
 	TEST(@"Allocating 4096 bytes",
 	    (p = [obj allocMemoryWithSize: 4096]) != NULL)
 
 	TEST(@"Freeing memory", [obj freeMemory: p])