--- a/plugins/mod_admin_shell.lua	Sat Jan 29 14:58:37 2022 +0100
+++ b/plugins/mod_admin_shell.lua	Sat Jan 29 15:01:38 2022 +0100
@@ -1653,7 +1653,7 @@
 			sum = value
 		elseif suffix == "_count" then
 			count = value
-		else
+		elseif extra_labels then
 			local bucket_threshold = extra_labels["le"]
 			local bucket_count
 			if cumulative then