diff --git a/include/mysql/client_plugin.h b/include/mysql/client_plugin.h
index cc3f468040f..6b37170aeab 100644
--- a/include/mysql/client_plugin.h
+++ b/include/mysql/client_plugin.h
@@ -156,8 +156,7 @@ mysql_client_register_plugin(struct st_mysql *mysql,
 
   @retval 0 on success, 1 in case of failure
 **/
-int STDCALL mysql_plugin_options(struct st_mysql_client_plugin *plugin,
-                                 const char *option,
-                                 const void *value);
+int mysql_plugin_options(struct st_mysql_client_plugin *plugin,
+                         const char *option, const void *value);
 #endif
 
diff --git a/libmysql/libmysql.def b/libmysql/libmysql.def
index fc15fcf0884..ce85d2a4086 100644
--- a/libmysql/libmysql.def
+++ b/libmysql/libmysql.def
@@ -104,4 +104,3 @@ EXPORTS
 	mysql_server_end
 	mysql_set_character_set
 	mysql_get_character_set_info
-        mysql_plugin_options