diff --git a/tests/data/simple_app.Desktop b/tests/data/simple_app.desktop
similarity index 100%
rename from tests/data/simple_app.Desktop
rename to tests/data/simple_app.desktop
diff --git a/tests/test_appdir.cpp b/tests/test_appdir.cpp
index c6f39e0..09d6f16 100644
--- a/tests/test_appdir.cpp
+++ b/tests/test_appdir.cpp
@@ -130,7 +130,7 @@ namespace AppDirTest {
         for (recursive_directory_iterator itr(tmpAppDir); itr != end_itr && (!simple_app_desktop_found); itr++) {
             const auto path = relative(itr->path(), tmpAppDir).filename().string();
 
-            if (path.find("simple_app.Desktop") != std::string::npos)
+            if (path.find("simple_app.desktop") != std::string::npos)
                 simple_app_desktop_found = true;
         }