diff --git a/src/Dao/TagDao.php b/src/Dao/TagDao.php
index 4fe18c21..12824575 100644
--- a/src/Dao/TagDao.php
+++ b/src/Dao/TagDao.php
@@ -60,8 +60,14 @@ class TagDao extends AbstractDao implements ICrudDao
 			->where('pt2.tagId', $tagId)
 			->groupBy('tags.id')
 			->orderBy('postCount DESC, name ASC');
-		$arrayEntities = iterator_to_array($query);
-		array_shift($arrayEntities); //don't show input tag itself
+
+		$arrayEntities = array_filter(
+			iterator_to_array($query),
+			function($arrayEntity) use ($tagName)
+			{
+				return strcasecmp($arrayEntity['name'], $tagName) !== 0;
+			});
+
 		return $this->arrayToEntities($arrayEntities);
 	}
 
diff --git a/src/Services/TagService.php b/src/Services/TagService.php
index 5514095a..c1b7b4a3 100644
--- a/src/Services/TagService.php
+++ b/src/Services/TagService.php
@@ -192,13 +192,13 @@ class TagService
 
 	private function updateImplications(Tag $tag, array $relatedNames)
 	{
-		$relatedNames = array_udiff($relatedNames, [$tag->getName()], 'strnatcasecmp');
+		$relatedNames = array_udiff($relatedNames, [$tag->getName()], 'strcasecmp');
 		$tag->setImpliedTags($this->createTags($relatedNames));
 	}
 
 	private function updateSuggestions(Tag $tag, array $relatedNames)
 	{
-		$relatedNames = array_udiff($relatedNames, [$tag->getName()], 'strnatcasecmp');
+		$relatedNames = array_udiff($relatedNames, [$tag->getName()], 'strcasecmp');
 		$tag->setSuggestedTags($this->createTags($relatedNames));
 	}
 }