diff --git a/lume.lua b/lume.lua
index dd7413a..ae2dbbe 100644
--- a/lume.lua
+++ b/lume.lua
@@ -618,11 +618,11 @@ end
 
 function lume.trace(...)
   local info = debug.getinfo(2, "Sl")
-  local t = { "[" .. info.short_src .. ":" .. info.currentline .. "]" }
+  local t = { info.short_src .. ":" .. info.currentline .. ":" }
   for i = 1, select("#", ...) do
     local x = select(i, ...)
     if type(x) == "number" then
-      x = string.format("%g", lume.round(x, .01))
+      x = tonumber(lume.round(x, .01))
     end
     t[#t + 1] = tostring(x)
   end
diff --git a/test/test_lume.lua b/test/test_lume.lua
index 3f1d350..3cf0efe 100644
--- a/test/test_lume.lua
+++ b/test/test_lume.lua
@@ -535,7 +535,7 @@ tests["lume.trace"] = function()
   local oldprint = print
   local file, line, msg
   print = function(x)
-    file, line, msg = x:match("%[(.-):(.-)%] (.*)")
+    file, line, msg = x:match("(.-):(.-): (.*)")
   end
   lume.trace("Hi world", 123.456, 1, nil)
   print = oldprint