diff --git a/tests/unit/screen_ui_test.cpp b/tests/unit/screen_ui_test.cpp
index ff8a35d..03e23ca 100644
--- a/tests/unit/screen_ui_test.cpp
+++ b/tests/unit/screen_ui_test.cpp
@@ -255,7 +255,7 @@
  protected:
   const std::string kTestLocale = "en-US";
   const std::string kTestRtlLocale = "ar";
-  const std::string kTestRtlLocaleWithSuffix = "ar_EG";
+  const std::string kTestRtlLocaleWithSuffix = "ar-EG";
 
   void SetUp() override {
     ui_ = std::make_unique<TestableScreenRecoveryUI>();