diff --git a/src/index.js b/src/index.js
index 75e6b31..1b1b1d7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -138,8 +138,8 @@ function setLanguage() {
     if (
       !availableLocaleSource
         .map((langObj) => langObj.language)
-        .includes(responseSourceLocale) ||
-      responseSourceLocale === ''
+        .includes(responseSourceLocale) &&
+      responseSourceLocale != ''
     ) {
       throw new Error(
         `[${ADDON_NAME}] Invalid Value (${responseSourceLocale}): Enter a valid value.`