diff --git a/Whatsapp_Chat_Exporter/whatsapp.html b/Whatsapp_Chat_Exporter/whatsapp.html
index c5425c9..a873f79 100644
--- a/Whatsapp_Chat_Exporter/whatsapp.html
+++ b/Whatsapp_Chat_Exporter/whatsapp.html
@@ -137,7 +137,7 @@
 								{% else %}
 									{% if "image/" in msg.mime %}
 									<a href="{{ msg.data }}">
-										<img src="{{ msg.thumb if msg.thumb is not none else msg.data }}" {{ 'class="sticker"' if msg.sticker }} />
+										<img src="{{ msg.thumb if msg.thumb is not none else msg.data }}" {{ 'class="sticker"' | safe if msg.sticker }} />
 									</a>
 									{% elif "audio/" in msg.mime %}
 									<audio controls="controls" autobuffer="autobuffer">
@@ -221,7 +221,7 @@
 								{% else %}
 									{% if "image/" in msg.mime %}
 									<a href="{{ msg.data }}">
-										<img src="{{ msg.thumb if msg.thumb is not none else msg.data }}" {{ 'class="sticker"' if msg.sticker }}/>
+										<img src="{{ msg.thumb if msg.thumb is not none else msg.data }}" {{ 'class="sticker"' | safe if msg.sticker }} />
 									</a>
 									{% elif "audio/" in msg.mime %}
 									<audio controls="controls" autobuffer="autobuffer">