diff --git a/src/Teekesselchen.lua b/src/Teekesselchen.lua
index e2327a3..54adf1f 100644
--- a/src/Teekesselchen.lua
+++ b/src/Teekesselchen.lua
@@ -399,6 +399,9 @@ local function comperatorEnv(name, comp, mandatory)
 	--@mno strip extension of filename to get base file name
 	if name=="fileName" then
 		value = string.sub(photo:getFormattedMetadata(name),1,-5) --@mno strip the last 4 chracters of the string
+	end
+	if name=="fileSize" then
+		value = photo:getRawMetadata(name)
 	end
 		-- nil is not a valid key, thus, we take a dummy value
     	if not value then