diff --git a/CMakeLists.txt b/CMakeLists.txt
index d86a3e1..efca492 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@ set(imgui include/imgui/imgui.cpp
 
 set(SOURCE_FILES
         ${imgui}
-        main.cpp
+        Main.cpp
         Marker.cpp
         Fumen.cpp
         Note.cpp
diff --git a/main.cpp b/Main.cpp
similarity index 100%
rename from main.cpp
rename to Main.cpp