diff --git a/src/Models/Model_Post.php b/src/Models/Model_Post.php
index 38ac1b6e..d3b9fc42 100644
--- a/src/Models/Model_Post.php
+++ b/src/Models/Model_Post.php
@@ -160,6 +160,12 @@ class Model_Post extends AbstractModel
 		return false;
 	}
 
+	public function hasCustomThumb($width = null, $height = null)
+	{
+		$thumbPath = self::getThumbCustomPath($this->name, $width, $height);
+		return file_exists($thumbPath);
+	}
+
 
 
 	public function setHidden($hidden)
diff --git a/src/Views/post-edit.phtml b/src/Views/post-edit.phtml
index ab9860b5..ac797ae3 100644
--- a/src/Views/post-edit.phtml
+++ b/src/Views/post-edit.phtml
@@ -49,7 +49,12 @@
 	<?php if (PrivilegesHelper::confirm(Privilege::EditPostThumb, PrivilegesHelper::getIdentitySubPrivilege($this->context->transport->post->uploader))): ?>
 		<div class="thumb">
 			<label class="left" for="thumb">Thumb:</label>
-			<div class="input-wrapper"><input type="file" name="thumb" id="thumb"/></div>
+			<div class="input-wrapper">
+				<input type="file" name="thumb" id="thumb"/>
+				<?php if ($this->context->transport->post->hasCustomThumb()): ?>
+					<small>(Currently using custom thumb)</small>
+				<?php endif ?>
+			</div>
 		</div>
 	<?php endif ?>