diff --git a/.gitmodules b/.gitmodules
index aed2ac128..a3337f219 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -21,6 +21,8 @@
 [submodule "OpenKeychain/src/test/resources/openpgp-interop"]
 	path = OpenKeychain/src/test/resources/openpgp-interop
 	url = https://github.com/google/openpgp-interop
+	ignore = dirty
 [submodule "extern/bouncycastle"]
 	path = extern/bouncycastle
 	url = https://github.com/open-keychain/bouncycastle.git
+	ignore = dirty