diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c4ac7ed..bace820 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -38,6 +38,7 @@ repos:
       - id: check-yaml
       - id: debug-statements
       - id: detect-private-key
+      - id: end-of-file-fixer
       - id: fix-byte-order-marker
       - id: requirements-txt-fixer
         files: requirements/.*\.txt$
diff --git a/AUTHORS b/AUTHORS
index 3bc0afa..eb5e7d3 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1 +1 @@
-Erik van Widenfelt <ew2789@gmail.com>
\ No newline at end of file
+Erik van Widenfelt <ew2789@gmail.com>
diff --git a/edc_qareports/templates/edc_qareports/columns/subject_identifier_column.html b/edc_qareports/templates/edc_qareports/columns/subject_identifier_column.html
index b8ecdfb..6369f32 100644
--- a/edc_qareports/templates/edc_qareports/columns/subject_identifier_column.html
+++ b/edc_qareports/templates/edc_qareports/columns/subject_identifier_column.html
@@ -1 +1 @@
-<a title="{{ title }}" href="{{ url }}?q={{ subject_identifier }}">{{ label|default:subject_identifier }}</a>
\ No newline at end of file
+<a title="{{ title }}" href="{{ url }}?q={{ subject_identifier }}">{{ label|default:subject_identifier }}</a>