diff --git a/files/routes/static.py b/files/routes/static.py
index 9f14e45e1..330987430 100644
--- a/files/routes/static.py
+++ b/files/routes/static.py
@@ -138,7 +138,7 @@ def static_service(path):
 		resp.headers.add("Content-Type", "text/css")
 		resp.headers.remove("Cache-Control")
 		resp.headers.add("Cache-Control", "public, max-age=86400")
-	elif request.path.endswith('.gif') or request.path.endswith('.png') or request.path.endswith('.ttf') or request.path.endswith('.woff') or request.path.endswith('.woff2'):
+	elif request.path.endswith('.gif') or request.path.endswith('.ttf') or request.path.endswith('.woff') or request.path.endswith('.woff2'):
 		resp.headers.remove("Cache-Control")
 		resp.headers.add("Cache-Control", "public, max-age=31556952")
 
diff --git a/files/templates/default.html b/files/templates/default.html
index de62879aa..0922520b7 100644
--- a/files/templates/default.html
+++ b/files/templates/default.html
@@ -47,7 +47,7 @@
 	</script>
 	<script type="text/javascript">
 		new BugController({
-			imageSprite: "/assets/images/fly-sprite.png",
+			imageSprite: "/assets/images/fly-sprite.gif",
 			canDie: false,
 			minBugs: 5,
 			maxBugs: 30,
diff --git a/files/templates/submission.html b/files/templates/submission.html
index 05add081c..a4d38e45d 100644
--- a/files/templates/submission.html
+++ b/files/templates/submission.html
@@ -181,7 +181,7 @@
 {% set maxbugs = 20*p.award_count("shit") if p.award_count("shit") <= 5 else 100 %}
 <script type="text/javascript">
 	new BugController({
-		imageSprite: "/assets/images/fly-sprite.png",
+		imageSprite: "/assets/images/fly-sprite.gif",
 		canDie: false,
 		minBugs: {{minbugs}},
 		maxBugs: {{maxbugs}},