diff --git a/widgets/mem_freebsd.lua b/widgets/mem_freebsd.lua
index 05b0a39..66dbbaf 100644
--- a/widgets/mem_freebsd.lua
+++ b/widgets/mem_freebsd.lua
@@ -2,6 +2,7 @@
 local tonumber = tonumber
 local setmetatable = setmetatable
 local math = { floor = math.floor }
+local io = { popen = io.popen }
 local helpers = require("vicious.helpers")
 -- }}}
 
@@ -53,23 +54,20 @@ local function worker(format)
         _swp.total = 0
         _swp.buf.free = 0
 
-        -- Read output of swapinfo
-        local f = io.popen("swapinfo")
+        -- Read output of swapinfo in Mbytes
+        local f = io.popen("swapinfo -m")
         -- Skip first line (table header)
         f:read("*line")
         -- Read content and sum up
         for line in f:lines() do
             local ltotal, lused, lfree = string.match(line, "%s+([%d]+)%s+([%d]+)%s+([%d]+)")
-            -- Add swap space in kbytes
+            -- Add swap space in Mbytes
             _swp.total = _swp.total + tonumber(ltotal)
             _swp.inuse = _swp.inuse + tonumber(lused)
             _swp.buf.free = _swp.buf.free + tonumber(lfree)
         end
         f:close()
 
-        -- Rework into megabytes
-        _swp.total = math.floor(_swp.total/1024)
-        _swp.buf.free = math.floor(_swp.buf.free/1024)
         -- Calculate percentage
         _swp.usep  = math.floor(_swp.inuse / _swp.total * 100)
     else