diff --git a/.gitmodules b/.gitmodules
index 0a1f3bc8..e69de29b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "Report/Report_Tetris"]
-	path = Report/Report_Tetris
-	url = https://github.com/chenle02/Report_Tetris
diff --git a/Report/Report_Tetris b/Report/Report_Tetris
deleted file mode 160000
index 289db26b..00000000
--- a/Report/Report_Tetris
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 289db26bb811310b6701282b7c8326d8550441ac