2 files changed, 2 insertions, 2 deletions
diff --git a/src/engine/gnump/eng_gmp.h b/src/engine/gnump/eng_gmp.h
index 08d9caa12..a0ff2661c 100644
--- a/src/engine/gnump/eng_gmp.h
+++ b/src/engine/gnump/eng_gmp.h
@@ -13,7 +13,7 @@ namespace Botan {
 /*************************************************
 * GMP Engine                                     *
 *************************************************/
-class GMP_Engine : public Engine
+class BOTAN_DLL GMP_Engine : public Engine
    {
    public:
 #if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
diff --git a/src/engine/gnump/gmp_wrap.h b/src/engine/gnump/gmp_wrap.h
index 09a8590c4..e2a420e6b 100644
--- a/src/engine/gnump/gmp_wrap.h
+++ b/src/engine/gnump/gmp_wrap.h
@@ -14,7 +14,7 @@ namespace Botan {
 /*************************************************
 * Lightweight GMP mpz_t Wrapper                  *
 *************************************************/
-class GMP_MPZ
+class BOTAN_DLL GMP_MPZ
    {
    public:
       mpz_t value;