diff --git a/include/cereal/types/polymorphic.hpp b/include/cereal/types/polymorphic.hpp
index 5c33d8e8d..f3db78f6c 100644
--- a/include/cereal/types/polymorphic.hpp
+++ b/include/cereal/types/polymorphic.hpp
@@ -165,18 +165,18 @@
     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 */                                      \
-  } /* end cereal */                                      \
-  namespace {                                             \
-    struct dynamic_init_##LibName {                       \
-      dynamic_init_##LibName() {                          \
-        ::cereal::detail::dynamic_init_dummy_##LibName(); \
-      }                                                   \
-    } dynamic_init_instance_##LibName;                    \
+#define CEREAL_FORCE_DYNAMIC_INIT(LibName)                 \
+  namespace cereal {                                       \
+  namespace detail {                                       \
+    void CEREAL_DLL_EXPORT 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