diff --git a/addons/project_issue/project_issue.py b/addons/project_issue/project_issue.py
index 69792322ab3..5ed73b344bf 100644
--- a/addons/project_issue/project_issue.py
+++ b/addons/project_issue/project_issue.py
@@ -495,10 +495,10 @@ class project_issue(base_stage, osv.osv):
     def message_get_suggested_recipients(self, cr, uid, ids, context=None):
         recipients = super(project_issue, self).message_get_suggested_recipients(cr, uid, ids, context=context)
         for issue in self.browse(cr, uid, ids, context=context):
-            if issue.partner_id:
-                self._message_add_suggested_recipient(cr, uid, recipients, issue, partner=issue.partner_id, reason=_('Customer'))
-            elif issue.email_from:
+            if issue.email_from:
                 self._message_add_suggested_recipient(cr, uid, recipients, issue, email=issue.email_from, reason=_('Customer Email'))
+            elif issue.partner_id:
+                self._message_add_suggested_recipient(cr, uid, recipients, issue, partner=issue.partner_id, reason=_('Customer'))
         return recipients
 
     def message_new(self, cr, uid, msg, custom_values=None, context=None):