1 files changed, 4 insertions, 0 deletions

diff --git a/src/Wallabag/CoreBundle/Entity/Entry.php b/src/Wallabag/CoreBundle/Entity/Entry.php
index 5aa582f8..608ed2f0 100644
--- a/src/Wallabag/CoreBundle/Entity/Entry.php
+++ b/src/Wallabag/CoreBundle/Entity/Entry.php
@@ -458,6 +458,10 @@ class Entry
      */
     public function addTag(Tag $tag)
     {
+        if ($this->tags->contains($tag)) {
+            return;
+        }
+
         $this->tags[] = $tag;
         $tag->addEntry($this);
     }