diff --git a/readme.txt b/readme.txt
index 64ba4e4..dc1a2a1 100644
--- a/readme.txt
+++ b/readme.txt
@@ -7,6 +7,7 @@ Tested up to: 4.5.2
 Stable tag: 1.6
 License: GPLv2
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
+Text Domain: nprapi
 
 A collection of tools for reusing content from NPR.org supplied by Digital Services.