1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index fe12878..0a5c8be 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ lint: ## Run lints (eg, flake8, mypy)
 
 .PHONY: fmt
 fmt: ## Run code formating on all source code
-	pipenv run isort --atomic grobid_tei_xml/*.py
+	pipenv run isort --atomic grobid_tei_xml/*.py tests/*.py
 	pipenv run yapf -p -i -r grobid_tei_xml tests
 
 .PHONY: test