diff --git a/locale/sl_SI/locale.xml b/locale/sl_SI/locale.xml
new file mode 100644
index 0000000000..64f7920dbc
--- /dev/null
+++ b/locale/sl_SI/locale.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE locale SYSTEM "../../../../lib/pkp/dtd/locale.dtd">
+
+<!--
+  * locale/sl_SI/locale.xml
+  *
+  * Copyright (c) 2014-2019 Simon Fraser University
+  * Copyright (c) 2003-2019 John Willinsky
+  * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
+  *
+  * Localization strings.
+  -->
+
+<locale name="sl_SI" full_name="Slovenščina">
+	<message key="plugins.generic.pdfJsViewer.name">PDF.JS PDF prikazovalnik</message>
+	<message key="plugins.generic.pdfJsViewer.description"><![CDATA[Vtičnik uporablja  <a href="http://mozilla.github.io/pdf.js">pdf.js PDF viewer</a> za prikaz preloma člankov in številk.]]></message>
+</locale>