diff --git a/test/core/memory64.wast b/test/core/memory64.wast
index ba3b2423..92dee1c1 100644
--- a/test/core/memory64.wast
+++ b/test/core/memory64.wast
@@ -5,6 +5,8 @@
 (module (memory i64 0 1))
 (module (memory i64 1 256))
 (module (memory i64 0 65536))
+(module (memory i64 0x1_0000_0000_0000))
+(module (memory i64 0 0x1_0000_0000_0000))
 
 (module (memory i64 (data)) (func (export "memsize") (result i64) (memory.size)))
 (assert_return (invoke "memsize") (i64.const 0))