diff --git a/include/fmt/format.h b/include/fmt/format.h
index 3c6b04fd..df352833 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -759,7 +759,9 @@ template <typename T = void> struct FMT_EXTERN_TEMPLATE_API basic_data {
   static const char right_padding_shifts[5];
 };
 
+#ifndef FMT_EXPORT
 FMT_EXTERN template struct basic_data<void>;
+#endif
 
 // This is a struct rather than an alias to avoid shadowing warnings in gcc.
 struct data : basic_data<> {};