diff --git a/abrechenbarkeit.lua b/abrechenbarkeit.lua
index 12514d2..f5b48a0 100755
--- a/abrechenbarkeit.lua
+++ b/abrechenbarkeit.lua
@@ -578,7 +578,7 @@ local function r_users(show_special)
 
         local show_user = function(user)
             local is_spu = user.name:sub(1, 1) == "@"
-            local filter_out = query.prefix ~= nil and user.name:sub(1,1):lower() ~= query.prefix
+            local filter_out = query.prefix ~= nil and user.name:sub(1, 1):lower() ~= query.prefix
             if is_spu == show_special and not filter_out then
                 print(format([[<li>
                     <a href="/{username_url}">
@@ -766,6 +766,14 @@ local function r_export_products()
         print(l)
     end
 end
+local function r_export_balances()
+    print("Status: 200")
+    print("Content-Type: text/csv")
+    print("")
+    for user, balance in pairs(balances()) do
+        print(string.format("%s,%d", user, balance))
+    end
+end
 
 if path == "/" then
     if query.about then
@@ -787,7 +795,11 @@ if path == "/" then
     elseif query.spus then
         return r_users(true)
     elseif query.users then
-        return r_users(false)
+        if query.export then
+            return r_export_balances()
+        else
+            return r_users(false)
+        end
     else
         return r_users(false)
     end