diff --git a/PRESUBMIT.cfg b/PRESUBMIT.cfg
index 43d092e..8bdbe9e 100644
--- a/PRESUBMIT.cfg
+++ b/PRESUBMIT.cfg
@@ -5,6 +5,9 @@
 # Make sure Manifest files are valid.
 manifest_check: true
 
+# Make sure RELEASE_NOTE field is present.
+release_note_field_check: true
+
 stray_whitespace_check: false
 long_line_check: false
 cros_license_check: false