diff --git a/uwsgi.c b/uwsgi.c
index d139c322..cf3bcdec 100644
--- a/uwsgi.c
+++ b/uwsgi.c
@@ -373,8 +373,8 @@ static struct uwsgi_option uwsgi_base_options[] = {
 	{"mimefile", required_argument, 0, "set mime types file path (default /etc/mime.types)", uwsgi_opt_add_string_list, &uwsgi.mime_file, UWSGI_OPT_MIME},
 	{"mime-file", required_argument, 0, "set mime types file path (default /etc/mime.types)", uwsgi_opt_add_string_list, &uwsgi.mime_file, UWSGI_OPT_MIME},
 
-	{"static-expires-type", required_argument, 0, "set the Expires header base on content type", uwsgi_opt_add_dyn_dict, &uwsgi.static_expires_type, UWSGI_OPT_MIME},
-	{"static-expires-type-mtime", required_argument, 0, "set the Expires header base on content type and file mtime", uwsgi_opt_add_dyn_dict, &uwsgi.static_expires_type_mtime, UWSGI_OPT_MIME},
+	{"static-expires-type", required_argument, 0, "set the Expires header based on content type", uwsgi_opt_add_dyn_dict, &uwsgi.static_expires_type, UWSGI_OPT_MIME},
+	{"static-expires-type-mtime", required_argument, 0, "set the Expires header based on content type and file mtime", uwsgi_opt_add_dyn_dict, &uwsgi.static_expires_type_mtime, UWSGI_OPT_MIME},
 
 	{"static-offload-to-thread", required_argument, 0, "offload static file serving to a thread (upto the specified number of threads)", uwsgi_opt_set_int, &uwsgi.static_offload_to_thread, UWSGI_OPT_MIME},