diff --git a/libs/pbd/pbd/search_path.h b/libs/pbd/pbd/search_path.h
index 2ccd9bf0ee..e4c6c07847 100644
--- a/libs/pbd/pbd/search_path.h
+++ b/libs/pbd/pbd/search_path.h
@@ -110,7 +110,7 @@ protected:
 	LIBPBD_TEMPLATE_MEMBER_API void add_directories (const std::vector<std::string>& paths);
 };
 
-void export_search_path (const std::string& base_dir, const char* varname, const char* dir);
+LIBPBD_API void export_search_path (const std::string& base_dir, const char* varname, const char* dir);
 
 
 } // namespace PBD
diff --git a/libs/pbd/pbd/windows_special_dirs.h b/libs/pbd/pbd/windows_special_dirs.h
index b77b8c7945..b0c6f65bc7 100644
--- a/libs/pbd/pbd/windows_special_dirs.h
+++ b/libs/pbd/pbd/windows_special_dirs.h
@@ -21,7 +21,7 @@
 #define __libpbd_windows_special_dirs_h__
 
 namespace PBD {
-	char * get_win_special_folder (int csidl);
+	LIBPBD_API char * get_win_special_folder (int csidl);
 }
 
 #endif /* __libpbd_windows_special_dirs_h__ */