diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77c6ed06..1f6ac963 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,8 @@ All notable changes to this project will be documented in this file.
 - Added JSON endpoint for Shields.io (#304)
 
 ### Bug Fixes
-- Don't set CSRF cookie on first visit. Signup is exempt from CSRF protection.
+- Don't set CSRF cookie on first visit. Signup is exempt from CSRF protection
+- Fix List-Unsubscribe email header value: add angle brackets
 
 
 ## v1.11.0 - 2019-11-22
diff --git a/hc/accounts/models.py b/hc/accounts/models.py
index 31994c60..cb0cb3a2 100644
--- a/hc/accounts/models.py
+++ b/hc/accounts/models.py
@@ -174,7 +174,7 @@ class Profile(models.Model):
 
         unsub_url = self.reports_unsub_url()
 
-        headers = {"List-Unsubscribe": unsub_url, "X-Bounce-Url": unsub_url}
+        headers = {"List-Unsubscribe": "<%s>" % unsub_url, "X-Bounce-Url": unsub_url}
 
         ctx = {
             "checks": checks,
diff --git a/hc/api/transports.py b/hc/api/transports.py
index 6731e70a..4d3cef91 100644
--- a/hc/api/transports.py
+++ b/hc/api/transports.py
@@ -61,7 +61,7 @@ class Email(Transport):
 
         unsub_link = self.channel.get_unsub_link()
 
-        headers = {"X-Bounce-Url": bounce_url, "List-Unsubscribe": unsub_link}
+        headers = {"X-Bounce-Url": bounce_url, "List-Unsubscribe": "<%s>" % unsub_link}
 
         try:
             # Look up the sorting preference for this email address