diff --git a/.gitignore b/.gitignore
index 0e3182bf..14a36c38 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,6 @@
 
 bin/
 bazel-*
+coverage.txt
+test/data/
+*.orig
diff --git a/Makefile b/Makefile
index 0169b688..242b1291 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ debug: doc
 
 .PHONY: test
 test:
-	$(shell cd test/data; ./gen_certs.sh; cd ${TOP_LEVEL})
+	$(shell mkdir -p test/data; cd test/data; ../scripts/gen_certs.sh; cd ${TOP_LEVEL})
 	go test -v -race -cover -coverprofile=coverage.txt -covermode=atomic ./...
 
 .PHONY: check
diff --git a/test/data/gen_certs.sh b/test/scripts/gen_certs.sh
similarity index 100%
rename from test/data/gen_certs.sh
rename to test/scripts/gen_certs.sh