diff --git a/apps/sample/space_index_2d/test_hash2d.cpp b/apps/sample/space_index_2d/space_index_2d.cpp
similarity index 100%
rename from apps/sample/space_index_2d/test_hash2d.cpp
rename to apps/sample/space_index_2d/space_index_2d.cpp
diff --git a/apps/sample/space_index_2d/test_hash2d.pro b/apps/sample/space_index_2d/space_index_2d.pro
similarity index 100%
rename from apps/sample/space_index_2d/test_hash2d.pro
rename to apps/sample/space_index_2d/space_index_2d.pro