diff --git a/gfx/d3d9/config_file.hpp b/gfx/d3d9/config_file.hpp
index 15876e52a5..cedce0822b 100644
--- a/gfx/d3d9/config_file.hpp
+++ b/gfx/d3d9/config_file.hpp
@@ -166,8 +166,8 @@ class ConfigFile
       config_file_t *conf;
       std::string path;
 
-      ConfigFile(const ConfigFile&) {};
-      void operator=(const ConfigFile&) {};
+      ConfigFile(const ConfigFile&); // Workaround lack of = delete.
+      void operator=(const ConfigFile&);
 };
 
 #endif