diff --git a/.gitmodules b/.gitmodules
index 5635b65..00cf1d5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,7 @@
 [submodule "stm-firmware/shellmatta"]
 	path = stm-firmware/shellmatta
 	url = https://git.shimatta.de/mhu/shellmatta
+[submodule "c-style-checker"]
+	path = c-style-checker
+	url = https://git.shimatta.de/mhu/c-style-checker.git
+	branch = master
diff --git a/c-style-checker b/c-style-checker
new file mode 160000
index 0000000..3a58e3d
--- /dev/null
+++ b/c-style-checker
@@ -0,0 +1 @@
+Subproject commit 3a58e3dd1c2ef6de78df89c8fdc7ba96b51cd4e0