diff --git a/.gitmodules b/.gitmodules
index 29f2d82224..cd7739f398 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -6,3 +6,5 @@
 [submodule "lib/main/pico-sdk"]
 	path = lib/main/pico-sdk
 	url = https://github.com/raspberrypi/pico-sdk.git
+	branch = master
+	ignore = dirty