Incorporating feedback.

Change-Id: Iaefa5d51f5872efa29e8c32e3d6bfdaae6b8966b
diff --git a/src/main.c b/src/main.c
index a5c1f29..1ea4ed9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -31,7 +31,7 @@
 
 #include "vmapi/hf/call.h"
 
-alignas(sizeof(
+alignas(alignof(
 	struct mm_page_table)) char ptable_buf[sizeof(struct mm_page_table) *
 					       HEAP_PAGES];