diff --git a/.gitmodules b/.gitmodules
index cb59823..9f24f5e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -31,3 +31,7 @@ branch = sledge
 path = runtime/tests/speechtotext
 url = https://github.com/gwsystems/speechtotext.git
 branch = sledge
+[submodule "runtime/tests/C-Image-Manip"]
+path = runtime/tests/C-Image-Manip
+url = https://github.com/lyuxiaosu/C-Image-Manip.git 
+branch = sledge
diff --git a/runtime/tests/C-Image-Manip b/runtime/tests/C-Image-Manip
deleted file mode 160000
index 89f1bea..0000000
--- a/runtime/tests/C-Image-Manip
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 89f1beaabcfe9d3dfc5faba358f1dcfee711f218