diff --git a/.gitignore b/.gitignore
index 19dbba458..a9f82bf95 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,11 +20,6 @@ __pycache__/
 /**/obj_dir*
 /**/gmon*
 
-#External repos
-addins/riscv-arch-test/Makefile.include
-addins/riscv-tests/target
-addins/TestFloat-3e/build/Linux-x86_64-GCC/*
-
 # Tests
 tests/riscof/config32.ini
 tests/riscof/config32e.ini
diff --git a/.gitmodules b/.gitmodules
index ddf8c33e0..2e1057a66 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -40,3 +40,4 @@
 [submodule "addins/berkeley-testfloat-3"]
 	path = addins/berkeley-testfloat-3
 	url = https://github.com/ucb-bar/berkeley-testfloat-3
+	ignore = dirty