diff --git a/.gitmodules b/.gitmodules
index 83966cf1..2135e239 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "ext/tinydtls"]
 	path = ext/tinydtls
 	url = https://git.eclipse.org/r/tinydtls/org.eclipse.tinydtls
+    ignore = dirty