diff --git a/util/misc/initialization_state_test.cc b/util/misc/initialization_state_test.cc
index f3681173..d6b96ced 100644
--- a/util/misc/initialization_state_test.cc
+++ b/util/misc/initialization_state_test.cc
@@ -18,6 +18,7 @@
 
 #include <memory>
 
+#include "base/compiler_specific.h"
 #include "base/memory/free_deleter.h"
 #include "gtest/gtest.h"
 
@@ -59,6 +60,10 @@ TEST(InitializationState, InitializationState) {
   // buffer that’s still valid and its destructor was called directly, this
   // approximates use-after-free without risking that the memory formerly used
   // for the InitializationState object has been repurposed.
+
+  // (Though this is still UB and MSan does not like this)
+  MSAN_UNPOISON(initialization_state, sizeof(*initialization_state));
+
   EXPECT_FALSE(initialization_state->is_uninitialized());
   EXPECT_FALSE(initialization_state->is_valid());
 }