diff --git a/runbot_merge/controllers.py b/runbot_merge/controllers.py
index d8613ff8..a9d0ef41 100644
--- a/runbot_merge/controllers.py
+++ b/runbot_merge/controllers.py
@@ -100,7 +100,7 @@ def handle_pr(event):
             'github_login': author_name,
         })
 
-    _logger.info("%s: %s:%s (%s)", event['action'], repo.name, pr['number'], author.github_login)
+    _logger.info("%s: %s:%s (%s) (%s)", event['action'], repo.name, pr['number'], pr['title'].strip(), author.github_login)
     if event['action'] == 'opened':
         # some PRs have leading/trailing newlines in body/title (resp)
         title = pr['title'].strip()
@@ -188,6 +188,14 @@ def handle_comment(event):
     if 'pull_request' not in event['issue']:
         return "issue comment, ignoring"
 
+    _logger.info(
+        'comment: %s %s:%s "%s"',
+        event['sender']['login'],
+        event['repository']['full_name'],
+        event['issue']['number'],
+        event['comment']['body'],
+    )
+
     env = request.env(user=1)
     partner = env['res.partner'].search([('github_login', '=', event['sender']['login']),])
     pr = env['runbot_merge.pull_requests'].search([
diff --git a/runbot_merge/models/pull_requests.py b/runbot_merge/models/pull_requests.py
index d9ed6980..87027f05 100644
--- a/runbot_merge/models/pull_requests.py
+++ b/runbot_merge/models/pull_requests.py
@@ -455,6 +455,12 @@ class PullRequests(models.Model):
             if ps is not None
         )
 
+        if not commands:
+            _logger.info("found no commands in comment of %s (%s) (%s%s)", author.github_login, author.display_name,
+                 comment[:50], '...' if len(comment) > 50 else ''
+            )
+            return 'ok'
+
         applied, ignored = [], []
         for command, param in commands.items():
             ok = False