diff --git a/MemoryType.cpp b/MemoryType.cpp
index 3243cd4..614f368 100644
--- a/MemoryType.cpp
+++ b/MemoryType.cpp
@@ -141,7 +141,8 @@
 }
 
 void MemoryType::getAlignmentAndSize(size_t *align, size_t *size) const {
-    *align = *size = 8;
+    *align = 8;  // hidl_memory
+    *size = 40;
 }
 
 status_t MemoryType::emitVtsTypeDeclarations(Formatter &out) const {