diff --git a/poly1305.cpp b/poly1305.cpp
index 3c23e010..6f778677 100644
--- a/poly1305.cpp
+++ b/poly1305.cpp
@@ -262,6 +262,6 @@ void Poly1305_Base<T>::Restart()
 	m_idx = 0;
 }
 
-CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS Poly1305<AES>;
+template class Poly1305<AES>;
 
 NAMESPACE_END