Index: uspace/lib/c/generic/malloc.c
===================================================================
--- uspace/lib/c/generic/malloc.c	(revision 100806465eefdbc917d7fcd6da881dc85f5a0c8b)
+++ uspace/lib/c/generic/malloc.c	(revision b078a42d6c08e6d638c8564b9160d39f9a09c544)
@@ -712,5 +712,5 @@
 		return NULL;
 
-	size_t gross_size = GROSS_SIZE(size);
+	size_t gross_size = GROSS_SIZE(ALIGN_UP(size, BASE_ALIGN));
 	
 	heap_block_head_t *split;