Index: uspace/lib/label/src/gpt.c
===================================================================
--- uspace/lib/label/src/gpt.c	(revision d85131771379c9537a913b5408ad050c34f2be6b)
+++ uspace/lib/label/src/gpt.c	(revision eed70f147d6cb10436c97e198628b915af0bbb95)
@@ -945,5 +945,5 @@
 	gpt_header_t *c;
 
-	c = calloc(1, sizeof(gpt_header_t));
+	c = calloc(1, hdr_size);
 	if (c == NULL)
 		return ENOMEM;