diff --git a/test/unittests/validation_test.cpp b/test/unittests/validation_test.cpp
index 1da2232ab2..93505f56ea 100644
--- a/test/unittests/validation_test.cpp
+++ b/test/unittests/validation_test.cpp
@@ -129,6 +129,22 @@ TEST(validation, memory_size_no_memory)
         parse(wasm), validation_error, "memory instructions require imported or defined memory");
 }
 
+TEST(validation, load_store_invalid_alignment)
+{
+    // TODO: add odd alignment
+    /* wat2wasm --no-check
+    (memory 1)
+    (func (param i32)
+      get_local 0
+      i32.const 0
+      i32.store align=8
+    )
+    */
+    const auto wasm =
+        from_hex("0061736d0100000001050160017f000302010005030100010a0b010900200041003603000b");
+    EXPECT_THROW_MESSAGE(parse(wasm), validation_error, "alignment cannot exceed operand size");
+}
+
 TEST(validation, br_invalid_label_index)
 {
     /* wat2wasm --no-check