diff --git a/code/__HELPERS/lists.dm b/code/__HELPERS/lists.dm
index 7d7f0365dc1..f54726c4161 100644
--- a/code/__HELPERS/lists.dm
+++ b/code/__HELPERS/lists.dm
@@ -116,8 +116,7 @@
 	else
 		result = first - second
 
-	if(result.len)
-		return result
+	return result
 
 /*
  * Returns list containing entries that are in either list but not both.
diff --git a/code/modules/clothing/glasses/glasses.dm b/code/modules/clothing/glasses/glasses.dm
index 5ca2b346064..4fde338ba54 100644
--- a/code/modules/clothing/glasses/glasses.dm
+++ b/code/modules/clothing/glasses/glasses.dm
@@ -259,10 +259,10 @@
 
 	if(slot == slot_glasses)
 		if(noir_mode)
-			if(color_view && user.client && (!user.client.color || difference))
+			if(color_view && user.client && (!user.client.color || difference.len))
 				animate(user.client, color = color_view, time = 10)
 	else
-		if(user.client && user.client.color && !difference)
+		if(user.client && user.client.color && !difference.len)
 			animate(user.client, color = initial(user.client.color), time = 10)
 	..(user, slot)
 
@@ -270,7 +270,7 @@
 	var/list/difference = difflist(user.client.color, color_view)
 
 	if(istype(user) && user.glasses == src)
-		if(user.client && user.client.color && !difference)
+		if(user.client && user.client.color && !difference.len)
 			animate(user.client, color = initial(user.client.color), time = 10)
 	..(user)