diff --git a/include/cereal/types/polymorphic.hpp b/include/cereal/types/polymorphic.hpp
index 5acc11f8a..5c33d8e8d 100644
--- a/include/cereal/types/polymorphic.hpp
+++ b/include/cereal/types/polymorphic.hpp
@@ -165,17 +165,19 @@
     See CEREAL_REGISTER_DYNAMIC_INIT for detailed explanation
     of how this macro should be used.  The name used should
     match that for CEREAL_REGISTER_DYNAMIC_INIT. */
-#define CEREAL_FORCE_DYNAMIC_INIT(LibName)              \
-  namespace cereal {                                    \
-  namespace detail {                                    \
-    void dynamic_init_dummy_##LibName();                \
-  } /* end detail */                                    \
-  namespace {                                           \
-    void dynamic_init_##LibName()                       \
-    {                                                   \
-      ::cereal::detail::dynamic_init_dummy_##LibName(); \
-    }                                                   \
-  } } /* end namespaces */
+#define CEREAL_FORCE_DYNAMIC_INIT(LibName)                \
+  namespace cereal {                                      \
+  namespace detail {                                      \
+    void dynamic_init_dummy_##LibName();                  \
+  } /* end detail */                                      \
+  } /* end cereal */                                      \
+  namespace {                                             \
+    struct dynamic_init_##LibName {                       \
+      dynamic_init_##LibName() {                          \
+        ::cereal::detail::dynamic_init_dummy_##LibName(); \
+      }                                                   \
+    } dynamic_init_instance_##LibName;                    \
+  } /* end anonymous namespace */
 
 namespace cereal
 {