diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index c3e2373..4233fec 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -3,7 +3,7 @@ project(DoRayTested)
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
 
-set(TESTS_SRC tuples_test.cpp colour_test.cpp canvas_test.cpp matrix_test.cpp transformation_test.cpp)
+set(TESTS_SRC tuple_test.cpp colour_test.cpp canvas_test.cpp matrix_test.cpp transformation_test.cpp)
 
 add_executable(testMyRays)
 target_include_directories(testMyRays PUBLIC ${gtest_SOURCE_DIR}/include ${gtest_SOURCE_DIR})
diff --git a/tests/tuples_test.cpp b/tests/tuple_test.cpp
similarity index 100%
rename from tests/tuples_test.cpp
rename to tests/tuple_test.cpp