Index: src/OFObject.m
==================================================================
--- src/OFObject.m
+++ src/OFObject.m
@@ -92,10 +92,13 @@
 - (void*)resizeMem: (void*)ptr
 	    toSize: (size_t)size
 {
 	struct __ofobject_allocated_mem *iter;
 
+	if (ptr == NULL)
+		return [self getMemWithSize: size];
+
 	for (iter = __mem_pool; iter != NULL; iter = iter->prev) {
 		if (iter->ptr == ptr) {
 			if ((ptr = realloc(iter->ptr, size)) == NULL) {
 				[[OFNoMemException newWithObject: self
 							 andSize: size] raise];

Index: tests/OFObject/OFObject.m
==================================================================
--- tests/OFObject/OFObject.m
+++ tests/OFObject/OFObject.m
@@ -83,12 +83,18 @@
 
 	puts("Allocating 1 byte...");
 	p = [obj getMemWithSize: 1];
 
 	puts("Trying to resize that 1 byte to more than possible...");
-	CATCH_EXCEPTION(p = [obj resizeMem: p toSize: 4294967295U],
+	CATCH_EXCEPTION(p = [obj resizeMem: p
+				    toSize: 4294967295U],
 	    OFNoMemException)
+
+	puts("Trying to resize NULL to 1024 bytes...");
+	p = [obj resizeMem: NULL
+		    toSize: 1024];
+	[obj freeMem: p];
 	
 	/* TODO: Test if freeing object frees all memory */
 
 	return 0;
 }