diff --git a/include/LightGBM/utils/ChunkedArray.hpp b/include/LightGBM/utils/chunked_array.hpp
similarity index 100%
rename from include/LightGBM/utils/ChunkedArray.hpp
rename to include/LightGBM/utils/chunked_array.hpp
diff --git a/swig/ChunkedArray_API_extensions.i b/swig/ChunkedArray_API_extensions.i
index 96eabedc4c21..314f44b346ba 100644
--- a/swig/ChunkedArray_API_extensions.i
+++ b/swig/ChunkedArray_API_extensions.i
@@ -5,10 +5,10 @@
  */
 
 %{
-#include "../include/LightGBM/utils/ChunkedArray.hpp"
+#include "../include/LightGBM/utils/chunked_array.hpp"
 %}
 
-%include "../include/LightGBM/utils/ChunkedArray.hpp"
+%include "../include/LightGBM/utils/chunked_array.hpp"
 
 using LightGBM::ChunkedArray;
 
diff --git a/tests/cpp_test/test_ChunkedArray.cpp b/tests/cpp_test/test_chunked_array.cpp
similarity index 99%
rename from tests/cpp_test/test_ChunkedArray.cpp
rename to tests/cpp_test/test_chunked_array.cpp
index 278fccd59aca..2b0721927936 100644
--- a/tests/cpp_test/test_ChunkedArray.cpp
+++ b/tests/cpp_test/test_chunked_array.cpp
@@ -5,7 +5,7 @@
  * Author: Alberto Ferreira
  */
 #include <gtest/gtest.h>
-#include "../include/LightGBM/utils/ChunkedArray.hpp"
+#include "../include/LightGBM/utils/chunked_array.hpp"
 
 using LightGBM::ChunkedArray;