diff --git a/classify_description_de.lua b/classify_description_de.lua
index 4cd4e1d..0b4e9f3 100644
--- a/classify_description_de.lua
+++ b/classify_description_de.lua
@@ -8,7 +8,6 @@ return {
 	["group:physics:speed"] = { label = "Geschwindigkeit" },
 	["group:physics:gravity"] = { label = "Erdanziehung" },
 	["group:armor:heal"] = { label = "Heilen" },
-	["group:armor:heal:0"] = { label = false },
 	["group:armor:water"] = { label = "Wasserschutz" },
 	["group:armor:fire"] = { label = "Feuerschutz" },
 	["group:armor:radiation"] = { label = "Schutz gegen Radioaktivität" },
@@ -85,7 +84,6 @@ return {
 	["tool"] = {label = false},
 	["tool:full_punch_interval"] = { label = "Verwendungsinterval" },
 	["tool:max_drop_level"] = { label = "Max drop Level" },
-	["tool:max_drop_level:0"] = { label = false },
 --	["tool:groupcaps:fleshy"] = { label = "??" },
 --	["tool:groupcaps:snappy"] = { label = "??"  },
 --	["tool:groupcaps:choppy"] = { label = "??" },
diff --git a/classify_description_en.lua b/classify_description_en.lua
index 1860b98..804b5ed 100644
--- a/classify_description_en.lua
+++ b/classify_description_en.lua
@@ -8,7 +8,6 @@ return {
 	["group:physics:speed"] = { label = "Walking speed" },
 	["group:physics:gravity"] = { label = "Gravity" },
 	["group:armor:heal"] = { label = "Heal" },
-	["group:armor:heal:0"] = { label = false },
 	["group:armor:water"] = { label = "Water protection" },
 	["group:armor:fire"] = { label = "Fire protection" },
 	["group:armor:radiation"] = { label = "Radiation protection" },
@@ -85,7 +84,6 @@ return {
 	["tool"] = {label = false},
 	["tool:full_punch_interval"] = { label = "Punch interval" },
 	["tool:max_drop_level"] = { label = "Max drop level" },
-	["tool:max_drop_level:0"] = { label = false },
 --	["tool:groupcaps:fleshy"] = { label = "??" },
 --	["tool:groupcaps:snappy"] = { label = "??"  },
 --	["tool:groupcaps:choppy"] = { label = "??" },
diff --git a/filter.lua b/filter.lua
index 5c65709..d9bc597 100644
--- a/filter.lua
+++ b/filter.lua
@@ -68,7 +68,10 @@ filter.register_filter({
 				else
 					mv = true
 				end
-				ret[mk] = mv
+
+				if v ~= 0 then
+					ret[mk] = mv
+				end
 			end
 			return ret
 		end,